EDUCATOR-1001 Fix language for visibility editor and validation to include units

This was probably left over from a previous variation
(there was no closing div).

EDUCATOR-396

This reverts commit 1224e341. I've also added
NotImplementedPartitionScheme, which allows deprecated partition types to have
a valid entry point despite being unusable.

TNL-6675

TNL-6744

This reverts commit 83f2be49, reversing
changes made to 01ed1742.

This is unused, and will no longer be supported on edx.org. Also adds a
DeprecatedModel utility class.

TNL-6126

TNL-4692

* 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

TNL-1137

TNL-652