Add 3 new BLW layer

git-svn-id: https://svn.bgdi.admin.ch/mf-chsdi/trunk/chsdi@4002 e100092c-b5e6-494f-8bdf-19c1ff2a4001
WMTS getCap parsin in openlayers can now contain mutliple legend urls.

See b099931cd033ed21db15b1cee42b29c2a54409d2 in openlayers history




git-svn-id: https://svn.bgdi.admin.ch/mf-chsdi/trunk/chsdi@4003 e100092c-b5e6-494f-8bdf-19c1ff2a4001