Add some Meta specific user groups

https://meta.wikimedia.org/wiki/Special:ListGroupRights

Change-Id: I4ac205bad66ab2ddef866e2171f4653199920b98
pages -> page. Only 1 link from Wikibase to Wikimedia Commons possible.

Spotted by Shirayuki
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Wikibase-sitelinks-commons/en

Change-Id: I15bbebb4976fb3481e7b01401d8c3b764e1ab1e0
Merge changes I15bbebb4,I4ac205ba

* changes:
  pages -> page. Only 1 link from Wikibase to Wikimedia Commons possible.
  Add some Meta specific user groups