Addressed issues with generic variable names, retested zipfile extract with...
Addressed issues with generic variable names, retested zipfile extract with Python 3.10, could not reproduce the problem I had earlier, and spent a LOT of time making the shapefile downloader testable.
- Closes #11 (closed)
- Closes #16 (closed)
- Closes #20 (closed)
- Closes #22 (closed)