Fix contradictory RC filters and add back-compat

Fix contradictory RC filters and add back-compat

Some combinations of RC filters should never appear
together because they guarantee to return no data
and cannot be visually represented in the new RC
filters UI (ERI project).

Examples include:
* 'hidemyself' and 'hidebyothers'
* 'hideminor' and 'hidemajor'
* All of the filters in the changeType group (which
  is extended by extensions)

This also handles an old special case, but it now redirects
instead of doing it silently:

hideanons=1 & hideliu=1 & hidebots=1 -> hideliu=1 & hidebots=1
hideanons=1 & hideliu=1 & hidebots=0 -> hidehumans=1

Bug: T151873
Change-Id: Id08dccd07b262ce61c9d38563f19a0ab181e2341