Update PermissionService.php

Author: edenleung

src/PermissionService.php

@@ -3,12 +3,15 @@
 namespace xiaodi\Permission;
 
 use xiaodi\Permission\Middleware\Permission;
+use xiaodi\Permission\Middleware\Role;
 
 class PermissionService extends \think\Service
 {
     public function register()
     {
         $this->app->bind('auth', Permission::class);
+        $this->app->bind('auth.permission', Permission::class);
+        $this->app->bind('auth.role', Role::class);
     }
 
     public function boot()