Implement Gradebook Interface

[nilsstreedain]

Implement Gradebook Interface

There is currently no teacher view for seeing aggregate question response data such as a grade book page. We recommend implementing both a teacher and student view for grades. Both teachers and students should have access to a clean grades pane listing all of that students questions/responses and scores. Teachers should also have an aggregate table view of all students in a section.

An important feature here is the option to sync grades to canvas. The aggregate teacher interface should have an option to manually, or automatically (periodically) sync MyClassroom grades to Canvas (see #102).

Edit: The project partner has also suggested adding more in-depth grade statistics to the teacher view, showing average scores, submission timelines, students missing submissions and more.

Related to: #229