v 0.9.6.1 DMVS import

You can use this release for importing GPKG files downloaded from https://dmvs.cuzk.gov.cz/portal/vydej-dat .

There was added automatic loading gpkg to ISSprOM. But there are still some restrictions or issues when clipping from ČÚZK (many map features are missing).

Full Changelog: DMVS0.9.6.1...DMVS0.9.6.1