[ONOS-3634] Enhance app to have a category, icon, URL and readme

This commmit enhances application to have category, icon, URL and
readme. The web GUI and CLI will be implemented in separate commits

Change-Id: Ib02716d7118cc617b24f196f2213ea1fe99a34be
diff --git a/apps/vtn/app/pom.xml b/apps/vtn/app/pom.xml
index 7f209ed..f148df9 100644
--- a/apps/vtn/app/pom.xml
+++ b/apps/vtn/app/pom.xml
@@ -1,12 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- ~ Copyright 2014 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. ~ You may obtain a copy of the License at
-    ~ ~ http://www.apache.org/licenses/LICENSE-2.0 ~ ~ Unless required by applicable
-    law or agreed to in writing, software ~ distributed under the License is
-    distributed on an "AS IS" BASIS, ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY
-    KIND, either express or implied. ~ See the License for the specific language
-    governing permissions and ~ limitations under the License. -->
+<!--
+  ~ Copyright 2014-2016 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.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>