[ONOS-3739] Substitute copyright year during archetype gen

With this commit, we can substitute the copyright year during
archetype generation phase, so that we do not need to manually
input the copyright year.

Change-Id: I3c0e4cdc69a3fad7a90335332d5489604107b892

-<?xml version="1.0" encoding="UTF-8"?>
+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
+?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2014-2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2014-2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2014-2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2014-2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

+#set( $dummy = "" )
+#set( $date = $dummy.getClass().forName("java.util.Date").newInstance() )
+#set( $format = $dummy.getClass().forName("java.text.SimpleDateFormat").newInstance() )
+#set( $pattern = $format.applyPattern("yyyy") )
+#set( $year = $format.format($date) )
 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
-  ~ Copyright 2016 Open Networking Laboratory
+  ~ Copyright ${year} Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2014-2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

@@ -2,7 +2,7 @@
 #set( $symbol_dollar = '$' )
 #set( $symbol_escape = '\' )
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright ${year} Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.