The GeoJSON specification is picky about winding order.
This helps you generate compliant Polygon and MultiPolygon geometries.
API
rewind(geojson: &mut geojson::Feature, outer: bool)
Given a GeoJSON FeatureCollection, Feature, or Geometry, return a version with inner and outer rings of different winding orders.
If outer is true, the outer ring is clockwise, otherwise it is counterclockwise.