This prevents the Feature-Based Enrollments groups from showing
in Group Configurations unless the studio_override_enabled flag
is enabled. It also fixes a bug where FBE group configurations were
displaying usage as though they were Track-based group configurations.
REVMI-78
* Automatically create user partitions on course publish for each ICRV checkpoint.
* Disable partitions for ICRV checkpoints that have been deleted.
* Skip partitions that have been disabled when checking access.
* Add verification access control UI to visibility settings.
* Add verification access control UI to sequential and vertical settings.
* Add partition scheme for verification partition groups.
* Cache information used by verification partition scheme and invalidate the cache on update.
* Add location parameter to UserPartition so the partition scheme can find the associated checkpoint.
* Refactor GroupConfiguration to allow multiple user partitions.
* Add special messaging to ICRV for students in the honor track.
Authors: Zubair Arbi, Awais Qureshi, Aamir Khan, Will Daly
