added admin settings view

src/app/features/admin/adminSettingsCtrl.js

@@ -0,0 +1,18 @@
+define([
+  'angular',
+],
+function (angular) {
+  'use strict';
+
+  var module = angular.module('grafana.controllers');
+
+  module.controller('AdminSettingsCtrl', function($scope) {
+
+    $scope.init = function() {
+
+    };
+
+    $scope.init();
+
+  });
+});