Add Copyright Header

scripts/bundle.js

@@ -1,3 +1,8 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
 const requirejs = require('requirejs');
 const path = require('path');
 const fs = require('fs');