Move admin code to App\Admin class

Removed old myaac_admin_menu code
Add logged() + accountLogged() functions

admin/tools/reload_data.php

@@ -24,16 +24,20 @@
  */
 
 use MyAAC\DataLoader;
+use MyAAC\Services\LoginService;
 
 const MYAAC_ADMIN = true;
 
 require '../../common.php';
 require SYSTEM . 'functions.php';
 require SYSTEM . 'init.php';
-require SYSTEM . 'login.php';
 
-if (!admin())
+$loginService = new LoginService();
+$loginService->checkLogin();
+
+if (!admin()) {
 	die('Access denied.');
+}
 
 ini_set('max_execution_time', 300);
 ob_implicit_flush();