added configurable permission system (#424)

src/Event/PrepareUserEvent.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Event;
+
+use App\Entity\User;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * This event should be used, if a user profile is loaded and we full data including dynamic user preferences
+ */
+class PrepareUserEvent extends Event
+{
+    public const PREPARE = 'app.prepare_user';
+
+    /**
+     * @var User
+     */
+    protected $user;
+
+    /**
+     * @param User $user
+     */
+    public function __construct(User $user)
+    {
+        $this->user = $user;
+    }
+
+    /**
+     * @return User
+     */
+    public function getUser()
+    {
+        return $this->user;
+    }
+}