Implemented the interface in all responses

refr #132

src/models/responses/ResponseUserPermissions.ts

@@ -5,12 +5,20 @@ import {
     IsOptional
 } from "class-validator";
 import { User } from '../entities/User';
+import { ResponseObjectType } from '../enums/ResponseObjectType';
+import { IResponse } from './IResponse';
 import { ResponsePermission } from './ResponsePermission';
 
 /**
  * Defines the user permission response (get /api/users/:id/permissions).
 */
-export class ResponseUserPermissions {
+export class ResponseUserPermissions implements IResponse {
+    /**
+    * The responseType.
+    * This contains the type of class/entity this response contains.
+    */
+    responseType: ResponseObjectType = ResponseObjectType.USERPERMISSIONS;
+
     /**
      * The permissions directly granted to the user.
      */