Give links to a user's suppressed edits on Special:Contribs

For users who are able to see the log, provide links to view
suppression log entries for actions done by the user. A link is also
added on Special:DeletedContributions.

This was formerly done by the Oversight extension.

Bug: 59120
Change-Id: I0e606636e80810f9917d6aa624a79f1e190297f6
Merge "Give links to a user's suppressed edits on Special:Contribs"