MDL-29627 quiz_access_manager move all output code to the renderer.

MDL-29627 quiz_access_manager move all output code to the renderer.

This achieves a massive clean-up. It simplifies comples code in a number
of places. It allows some methods and functions to be moved to a more
appropriate home (for example cannot_review_message to the quiz class).
It moves more logic out of the renderer.