Migrate move protect log to new log system

Migrate move protect log to new log system

Migrate the move protect log as first sub type of the protection log,
because it does not have complex log parameter, which needs some way of
handling/migration.
It also keeps the gerrit change smaller and hopefully makes review
easier.
The other sub types of the protection log will be migrated in a later
patch set.

This allows use of gender on Special:Log. Old message is kept for use
in IRC. A test was added to ensure an unchanged IRC message.

Bug: T47988
Change-Id: I57b3bd8a7dc823acdbb56520d2364f5542283373