Implementation for issue-42: Create test results view summary for instructors and TAs

The is issue relates to adding a feature that will allow instructors to quickly view the token/results data of every groups auto-run tests.   A new tab will be created under the "Assignments" tab.  It will provide an overview of the following information for every group submitting a solution to a assignment:

1)  The number of tokens a group has left - this is the number of times a student may auto test in a day.
2)  The last time a student or professor ran an automated test on a particular project, 
3)  A grading breakdown - how marks were distributed in the automated test.
4)  General feedback from the test script that a students assignment was run on.

This will be a net new screen.