feat(backend): Rendering van meerkeuzevragen en open vragen (essay) toegevoegd + getest

backend/src/services/learning-objects/processing/gift/question-renderers/short-question-renderer.ts

@@ -3,7 +3,7 @@ import {ShortAnswer} from "gift-pegjs";
 import {ProcessingError} from "../../processing-error";
 
 export class ShortQuestionRenderer extends GIFTQuestionRenderer<ShortAnswer> {
-    render(question: ShortAnswer): string {
+    render(question: ShortAnswer, questionNumber: number): string {
         throw new ProcessingError("The question type 'ShortAnswer' is not supported yet!");
     }
 }