Update vendor and create new major 2.x branch
Update vendor and create new major 2.x branch

dhensby/silverstripe-gridfieldextensions,kinglozzer/silverstripe-gridfieldextensions,dhensby/silverstripe-gridfieldextensions,kinglozzer/silverstripe-gridfieldextensions,symbiote/silverstripe-gridfieldextensions,silverstripe-australia/silverstripe-gridfieldextensions,symbiote/silverstripe-gridfieldextensions,silverstripe-australia/silverstripe-gridfieldextensions