Adds usage rights to the models retrieved for new files

refs CNVS-15867, CNVS-15865, CNVS-15868

Test Plan:
- Nothing really easy to test with this commit.
- You could put a breakpoint in your developer tools and
check to see if a file has usage_rights associated, but
that's rather pointless at this point. Future commits
will be based on this one.

Change-Id: I37677ab79c82d9f08f981f5123a661dc84038793
Reviewed-on: https://gerrit.instructure.com/44544
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Dan Minkevitch <dan@instructure.com>
QA-Review: Clay Diffrient <cdiffrient@instructure.com>
Product-Review: Clay Diffrient <cdiffrient@instructure.com>