[Archive] replace column 'bbox' with 'geometry'

[MarkusZehner]

replaces the column bbox with geometry containing the footprint geometry instead of the bounding box. Import of old databases can be done with import_outdated.

[johntruckenbrodt]

I have added some more commits removing one test database (to reduce data volume) and avoid database modification. @MarkusZehner the newly added databases contained absolute paths to your local Sentinel-1 scenes. the test database now contains a relative path so that the database entry is not deleted when cleanup=True because it could not be found (which caused the database modification) and the scene can be identified relative to the database file during import_outdated. Before, the scene entry was deleted while opening the database and there was nothing left to do in import_outdated causing the tests to succeed on AppVeyor.