Add restriction levels per wiki as documented at  https://noc.wikimedia.org/conf/highlight.php?file=InitialiseSettings.php at the wgRestrictionLevels section

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9920 5227b50d-9349-4574-b055-4b0a7525e11c