Implemented the interface in all responses

refr #132

src/models/responses/ResponsePermission.ts

@@ -7,12 +7,20 @@ import {
 import { Permission } from '../entities/Permission';
 import { PermissionAction } from '../enums/PermissionAction';
 import { PermissionTarget } from '../enums/PermissionTargets';
+import { ResponseObjectType } from '../enums/ResponseObjectType';
+import { IResponse } from './IResponse';
 import { ResponsePrincipal } from './ResponsePrincipal';
 
 /**
  * Defines the permission response.
 */
-export class ResponsePermission {
+export class ResponsePermission implements IResponse {
+    /**
+    * The responseType.
+    * This contains the type of class/entity this response contains.
+    */
+    responseType: ResponseObjectType = ResponseObjectType.PERMISSION;
+
     /**
      * The permission's id.
      */