[Example] Bring in example persistence

Bring in BrowserPersistenceService as an example, to use
as a stub to develop and integrate commonUI bundles
against. WTD-574.

example/persistence/bundle.json

@@ -0,0 +1,18 @@
+{
+    "extensions": {
+        "components": [
+            {
+                "provides": "persistenceService",
+                "type": "provider",
+                "implementation": "BrowserPersistenceProvider.js",
+                "depends": [ "$q", "PERSISTENCE_SPACE" ]
+            }
+        ],
+        "constants": [
+            {
+                "key": "PERSISTENCE_SPACE",
+                "value": "mct"
+            }
+        ]
+    }
+}

example/persistence/src/BrowserPersistenceProvider.js

@@ -0,0 +1,82 @@
+/*global define*/
+
+/**
+ * Stubbed implementation of a persistence provider,
+ * to permit objects to be created, saved, etc.
+ */
+define(
+    [],
+    function () {
+        'use strict';
+
+
+
+        function BrowserPersistenceProvider($q, SPACE) {
+            var spaces = SPACE ? [SPACE] : [],
+                caches = {},
+                promises = {
+                    as: function (value) {
+                        return $q.when(value);
+                    }
+                };
+
+            spaces.forEach(function (space) {
+                caches[space] = {};
+            });
+
+            return {
+                listSpaces: function () {
+                    return promises.as(spaces);
+                },
+                listObjects: function (space) {
+                    var cache = caches[space];
+                    return promises.as(
+                        cache ? Object.keys(cache) : null
+                    );
+                },
+                createObject: function (space, key, value) {
+                    var cache = caches[space];
+
+                    if (!cache || cache[key]) {
+                        return promises.as(null);
+                    }
+
+                    cache[key] = value;
+
+                    return promises.as(true);
+                },
+                readObject: function (space, key) {
+                    var cache = caches[space];
+                    return promises.as(
+                        cache ? cache[key] : null
+                    );
+                },
+                updateObject: function (space, key, value) {
+                    var cache = caches[space];
+
+                    if (!cache || !cache[key]) {
+                        return promises.as(null);
+                    }
+
+                    cache[key] = value;
+
+                    return promises.as(true);
+                },
+                deleteObject: function (space, key, value) {
+                    var cache = caches[space];
+
+                    if (!cache || !cache[key]) {
+                        return promises.as(null);
+                    }
+
+                    delete cache[key];
+
+                    return promises.as(true);
+                }
+            };
+
+        }
+
+        return BrowserPersistenceProvider;
+    }
+);