Adding missing files to /Pyconversion, a.o. GPKG (geodata-database, may hold...

Adding missing files to /Pyconversion, a.o. GPKG (geodata-database, may hold several datasets!), QGZ (Qgis project files), QML (Qgis layer definition, vector), QLR (Qgis layer definition, raster). 

git-svn-id: file:///data/vcs/svn/wozep/06_KEC_update@106 2644bf9d-2702-4baa-a01c-52b3410d9c0d