v0.12.0

Adds the following features:

• KML format is now supported via the FastKML library
• Adds a parsers module with parsers for GeoJSON, WKT, and KML
• Adds a method filter_impossible_journeys to the Track object
• Coordinate order can now be flipped to return (lat, lon) in the various egress methods using the reverse=True keyword argument
• Adds a method from_str to the TimeInterval object to support string conversion

Updates the following:

• Upgrades H3 integration to version 4, from version 3

Fixes the following issues:

• Fixes a bug that occurred while parsing Z values from WKT
• Fixes a bug that occurred when attempting to pickle any geostructure