Adds a link for admins to give a medical bypass.

The link is on a student-facing page, but uses our magic css classes to hide it
from students.
Merge branch 'main' into medical-bypass-link
Adds "grant medical bypass" to userview page.

It will only display if the module is enabled.
Fixes hasModule for nonexistent program.
Merge pull request #1226 from learning-unlimited/medical-bypass-link

Adds a link for admins to give a medical bypass.