User => Add gitlab id

NodeApp/src/models/User.ts

@@ -6,6 +6,7 @@ class User extends Model {
     firstName: string = '';
     lastName: string = '';
     mail: string = '';
+    gitlabId: number = -1;
     role: string = '';
     isTeachingStaff: boolean = false;
     deleted: boolean = true;