[Plugins] Expose plugins on openmct project

...to allow a simple Open MCT to be configured for tutorials,
#1248

src/MCT.js

@@ -27,6 +27,7 @@ define([
     './api/api',
     './selection/Selection',
     './api/objects/object-utils',
+    './plugins/plugins',
     './ui/ViewRegistry'
 ], function (
     EventEmitter,
@@ -35,6 +36,7 @@ define([
     api,
     Selection,
     objectUtils,
+    plugins,
     ViewRegistry
 ) {
     /**
@@ -278,5 +280,7 @@ define([
         plugin(this);
     };
 
+    MCT.prototype.plugins = plugins;
+
     return MCT;
 });

src/plugins/plugins.js

@@ -0,0 +1,30 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2016, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is 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.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+define([
+], function () {
+    return {
+        localStorage: function (openmct) {
+            openmct.legacyRegistry.enable('platform/persistence/local');
+        }
+    };
+});