Added simple netty server

+package org.onlab.onos.foo;
+
+import java.io.IOException;
+
+import org.jboss.netty.handler.logging.LoggingHandler;
+import org.onlab.netty.EchoHandler;
+import org.onlab.netty.KryoSerializer;
+import org.onlab.netty.NettyMessagingService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Test to measure Messaging performance.
+ */
+    public class SimpleNettyServer {
+        private static Logger log = LoggerFactory.getLogger(IOLoopTestServer.class);
+
+            private SimpleNettyServer() {}
+
+            public static void main(String... args) throws Exception {
+                startStandalone(args);
+                System.exit(0);
+            }
+
+        public static void startStandalone(String[] args) throws IOException {
+                NettyMessagingService server = new NettyMessagingService(8080);
+            try {
+                server.activate();
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+            server.setSerializer(new KryoSerializer());
+                    server.registerHandler("simple",
+                        (org.onlab.netty.MessageHandler) new LoggingHandler());
+                server.registerHandler("echo", new EchoHandler());
+        }
+    }
+