GUI extension Yeoman generator

Change-Id: If6b3fae44e4ee8a7bde36600cdc71d54d49fbf6e
(cherry picked from commit 3ca3e2086046a61b3f58813e7cb9052a600e2323)
diff --git a/generator-xos-gui-extension/generators/templates/src/index.html b/generator-xos-gui-extension/generators/templates/src/index.html
new file mode 100644
index 0000000..619c817
--- /dev/null
+++ b/generator-xos-gui-extension/generators/templates/src/index.html
@@ -0,0 +1,35 @@
+
+<!--
+Copyright 2017-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.
+-->
+
+
+<!DOCTYPE html>
+<html lang="en" ng-app="<%= name %>">
+<head>
+  <meta charset="UTF-8">
+  <title><%= name %></title>
+  <link href="/xos/loader.css" rel="stylesheet">
+  <link href="/xos/app.css" rel="stylesheet">
+</head>
+<body>
+  <div ui-view></div>
+  <script src="/xos/vendor.js"></script>
+  <script src="/xos/app.js"></script>
+  <script src="/xos/loader.js"></script>
+  <script src="/xos/app.config.js"></script>
+  <script src="/xos/style.config.js"></script>
+</body>
+</html>