[ONOS-6982] Implement OpenStackNetworking UI Service

- This implements the UI service for OpenStack Netwrorking App
- When mouse is over host or device, based on VNI,the UI highlights related hosts, links and devices
- The UI also supports flow trace functionality

Change-Id: I1944f3237cc112ed5c5e0d19351759cc66145881
diff --git a/apps/openstacknetworkingui/src/main/webapp/WEB-INF/web.xml b/apps/openstacknetworkingui/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000..616ad86
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2016-present Open Networking Foundation
+  ~
+  ~ 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.
+  -->
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
+         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         id="ONOS" version="2.5">
+    <display-name>SONA GUI REST API v1.0</display-name>
+
+    <servlet>
+        <servlet-name>JAX-RS Service</servlet-name>
+        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
+        <init-param>
+            <param-name>jersey.config.server.provider.classnames</param-name>
+            <param-value>
+                org.onosproject.openstacknetworkingui.web.FlowTraceWebResource
+            </param-value>
+        </init-param>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>JAX-RS Service</servlet-name>
+        <url-pattern>/*</url-pattern>
+    </servlet-mapping>
+</web-app>