TODO
- Eval mississippi.
- Eval csv2 + through2 in object mode.
- Add option to output a FeatureCollection.
- Copy CSV columns as GeoJSON properties.
- Add cli argument to choose column to match.
- Add keywords to source of truth.
- Simplify GeoJSON features (e.g. Z7).
- Migrate to Vector Tiles.
- Instead of concat-stream, console.log() FeatureCollection wrapper