Added example 16 Bathing Waters

16_BathingWaters/README.md

16_BathingWaters/badegewasser-stammdaten-aktuell.json

16_BathingWaters/example16.py

16_BathingWaters/kreise.min.geojson

16_BathingWaters/output.png

16_BathingWaters/poetry.lock

16_BathingWaters/pyproject.toml

16_BathingWaters/v_badegewaesser_odata.csv

README.md