Following 23c3c70d7f, soft deprecate the static methods on
DatabaseBlock that have been moved to DatabaseBlockStore:
* ::insert
* ::delete
* ::update
* ::purgeExpired
Update calls to the deprecated methods from core.
Change-Id: I1272eb978594fd4f386bda12cbc24131ad7d882f
Create UnblockUserFactory service, which returns an UnblockUser.
UnblockUser::unblock replaces SpecialUnblock::processUnblock, which
is now deprecated.
Update SpecialUnblock and ApiUnblock to use UnblockUser, removing
the API module's dependency on the special page.
Update SpecialUnblock::processUIUnblock to use UnblockUser, and mark
it for internal use only. It now returns a Status object.
Also add BlockPermissionChecker::checkBasePermissions, which checks
for the 'block' right and the 'hideuser' right if necessary.
Bug: T250020
Change-Id: Ide31da469297f4582ad0e3f7f1a7c40d542923f8
