Implement EZP-22479: SiteAccessLimitation support for use in new login system
Remove @covers use in Limitation tests as asked for in #775
EZP-22479: Fixed CoreVoter with limitations.

CoreVoter is not meant to deal with limitations (this is the goal of ValueObjectVoter).
It should abstain when an attribute has limitations.
EZP-22479: Implement SiteAccess limitation on authentication

Checks are made:
* When submitting credentials (interactive login event)
* When accessing content (request event)