print friendly view of student mastery

fixes CNVS-13524

- visit the grades page as a student
- view learning mastery
- print the page
- the print should show progress bars and expand all outcomes

Change-Id: Iaa7c48b17d4d06b192c3711647eb870e1731e38d
Reviewed-on: https://gerrit.instructure.com/36237
Reviewed-by: Drew Bowman <dbowman@instructure.com>
Product-Review: Drew Bowman <dbowman@instructure.com>
QA-Review: Drew Bowman <dbowman@instructure.com>
Tested-by: Drew Bowman <dbowman@instructure.com>