Allow to pass a rev id to a log entry without making it unpatrolled

Allow to pass a rev id to a log entry without making it unpatrolled

This adds new methods to ManualLogEntry that allow to specify that
a log entry is patrollable. RecentChange::newLogEntry then checks
this in order to allow or not unpatrolled status instead of checking
if there is an associated rev id. This allows to associate a revision
to a log entry without possibly making the recent change unpatrolled,
and extensions can implement patrol of actions not dependent on an
associated revision id.

Bug: T127848
Change-Id: I98298047142819b69639e6ca9d77c5ba982a380c