Allow a combination of media and text elements in questions and feedback

[matthias-noetzli]

We had the requirement to be able to display a combination of images, videos, and text elements in a question or a feedback message.

I made a fork (https://github.com/HfH-DLC/h5p-multi-choice-media) and implemented the changes there by replacing those text fields with library fields with options for image, video and text, similarly to the already existing media field. Since the feedback messages can get rather big when containing media, I also added a toggle button for those.

Now we would like this functionality to be available on the Content Hub but are unsure about the best course of action. Is this functionality something that could be merged into the main repository or are we better off creating a new "Multiple Choice with Media" content type? And In the second case, how would go about publishing that. I appreciate your feedback.