feat(groups): user_groups lookup, admin assignment UI, public directory with DataTables

application/controller/DirectoryController.php

@@ -0,0 +1,16 @@
+<?php
+
+class DirectoryController extends Controller
+{
+    public function __construct()
+    {
+        parent::__construct();
+    }
+
+    public function index()
+    {
+        $this->View->render('directory/index', [
+            'users' => UserModel::getUsersWithGroups()
+        ]);
+    }
+}