Enabled --prod mode for GUI2 - refactored modules

Change-Id: I224fe9564cb225b9ebaed0a43281de54ec6eb274
diff --git a/web/gui2/src/main/webapp/app/onos-routing.module.ts b/web/gui2/src/main/webapp/app/onos-routing.module.ts
new file mode 100644
index 0000000..abc6ee0
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/onos-routing.module.ts
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014-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.
+ */
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+const onosRoutes: Routes = [
+    {
+        path: 'apps',
+        loadChildren: 'app/view/apps/apps.module#AppsModule'
+    },
+    {
+        path: 'devices',
+        loadChildren: 'app/view/device/device.module#DeviceModule'
+    },
+    {
+        path: '',
+        redirectTo: '',
+        pathMatch: 'full'
+    }
+];
+
+/**
+ * ONOS GUI -- Main Routing Module - allows modules to be lazy loaded
+ *
+ * See https://angular.io/guide/lazy-loading-ngmodules
+ * for the theory of operation
+ */
+@NgModule({
+    imports: [
+        RouterModule.forRoot(onosRoutes)
+    ],
+    exports: [RouterModule],
+    providers: []
+})
+export class OnosRoutingModule { }