Adding remote_jar bucklet

Change-Id: I925c3b56158709195e4b5e1278de325cac013090

 include_defs('//bucklets/maven_jar.bucklet')
 include_defs('//bucklets/onos.bucklet')
 include_defs('//bucklets/onos_app.bucklet')
+include_defs('//bucklets/remote_jar.bucklet')
 
 BASE_DEPS = [
     '//lib:junit',

+def remote_jar (
+        name,
+        out,
+        url,
+        sha1,
+        maven_coords = None,
+        visibility = [ 'PUBLIC' ],
+    ):
+
+    prebuilt_jar(
+        name = name,
+        binary_jar = ':' + out,
+        maven_coords = maven_coords,
+        visibility = visibility,
+    )
+
+    remote_file(
+        name = out,
+        out = out,
+        url = url,
+        sha1 = sha1,
+        visibility = []
+    )