Issue with score screen when embedded within Webcourses

[clpetersonucf]

The custom score screen is making a request to the API for question_set_get to get qset information. This isn't a problem most of the time, because the assumption is the user is already logged in. However, there's one context where this isn't true: when visiting an assignment submission page in Canvas, the student may not be authenticated, and the API call for the qset fails, resulting in the score screen failing to load. The question information should already be baked into the widget_instance_play_scores_get request all score screens normally made, so ideally we use that instead.