Add new rules when user is blocked for UTP

Add new rules when user is blocked for UTP

No changes for sitewide blocks when "Prevent user... edit own talk page"
is checked. On partial blocks, this option will be disabled and ignored. All users
will be allowed to edit their own talk page unless a page restriction
for their page is in place.

New rules will be implemented for Namespace restrictions in a different
patch when Namespace blocking is ready.

Bug: T210475
Change-Id: I096edf2887441bccd59f09bf0eceb3988b36db1e