Initial import of Angular5 components services and modules

Change-Id: I3953f1fbf7d5697a1c6d432808dd17d816ec285a
diff --git a/web/gui2/src/main/webapp/app/fw/util/prefs.service.ts b/web/gui2/src/main/webapp/app/fw/util/prefs.service.ts
new file mode 100644
index 0000000..3cef9b6
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/fw/util/prefs.service.ts
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2015-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 { Injectable } from '@angular/core';
+import { FnService } from '../util/fn.service';
+import { LogService } from '../../log.service';
+import { WebSocketService } from '../remote/websocket.service';
+
+/**
+ * ONOS GUI -- Util -- User Preference Service
+ */
+@Injectable()
+export class PrefsService {
+
+    constructor(
+        private fs: FnService,
+        private log: LogService,
+        private wss: WebSocketService
+    ) {
+        this.log.debug('PrefsService constructed');
+    }
+
+}