[ACA-2390] Evaluators - user is admin (#1116)

* user isAdmin rule

* register rule

* test

* update docs

* remove fdescribe

projects/aca-shared/rules/src/user.rules.ts

@@ -0,0 +1,34 @@
+/*!
+ * @license
+ * Alfresco Example Content Application
+ *
+ * Copyright (C) 2005 - 2019 Alfresco Software Limited
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail.  Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import { RuleContext } from '@alfresco/adf-extensions';
+
+/**
+ * Checks if user is admin.
+ * JSON ref: `user.isAdmin`
+ */
+export function isAdmin(context: RuleContext): boolean {
+  return context.profile.isAdmin;
+}