xblock-invideo-quiz, we own it in PyPI but not on Github

[feanil]

Stanford currently owns the code. They well be updating the code to be BSD-3 licensed. At that point, we should:

• Fork it into the openedx org.
• Update the license to be AGPLv3 moving forward. There's a process for this and we did it before with https://github.com/openedx/django-require/ so we should follow the same process. I think we tagged the commit as a part of that so don't forget to do that.
• Update any setup.py and documentation information.
• Do any initial maintenance it needs.
• Publish to the existing PyPI package using the new repo location.
• Ensure that the PyPI package is only managed by the openedx PyPI user.

[feanil]

It looks like this was already forked into the openedx org, I'm talking to Legal about what our next steps should be.

[feanil]

This block is now being published from the openexd or here: https://github.com/openedx/xblock-in-video-quiz/releases

To reduce confusion, we've disconnected our for from the upstream stanford version to make it clear that this is the canonical version of the repo now.