update overture normalized: filter to country, region, county - remove maritime geometry

Delete divisions_area

update normalized overture: filter to country, region, county - remove maritime boundary

Remove raw parquet files

Upload Natural Earth normalized data

Upload Overture normalized data

Add overture/divisions_area/

Add natural_earth_geoparquet/

Remove flat structure

v1: Overture divisions_area parquet files

v1: Natural Earth 10m physical features (geoparquet)

initial commit