Add downloadable report that compiles all student work

[lenglund]

Add another report to the report types that combines aspects of the Basic Participation report and Compiled Feedback report.

Sorted by assignment
For each student, show
Columns: Last Name, First Name, Student Number, Answer, Attachment
...and below this the data from the Compiled Feedback report

What this allows is for an instructor/TA to download the report and see all in one place everything a student has submitted (answer + feedback given), for easier grading purposes.