Add bafu.hydrologie-gewaesserzustandsmessstationen

git-svn-id: https://svn.bgdi.admin.ch/tilegenerator/trunk@450 bd729b38-e83c-4c31-ba7f-6b5d0bf862be
Add BAFU layers

git-svn-id: https://svn.bgdi.admin.ch/tilegenerator/trunk@451 bd729b38-e83c-4c31-ba7f-6b5d0bf862be