rolap 2.5.0

• Geographic information query functions: as_geolayer(), get_layer(), get_variables(), set_variables(), as_GeoPackage().
• Functions to define geoattributes: define_geoattribute(), check_geoattribute_geometry(), get_geoattributes(), get_geoattribute_geometries().
• Geographic information processing functions: coordinates_to_point(), get_layer_geometry(), summarize_layer(), get_point_geometry().