[v0.1.0] Add lane type to `Lane` map object.

[DanielDauner]

• Check which datasets have different lane types available and create enum.
• Implement to datasets.
• Add test.

[DanielDauner]

Added for av2, nuscenes, nuplan, and waymo (these either have car, bike, or bus lanes in the format). For OpenDRIVE, we currently just map to LaneType.UNDEFINED.