New environment - added San Francisco, CA.
- Custom callback for Python API, useful in sensor plugins.
- Ability to specify count and types of NPCs to spawn on the map.
- Optimized texture usage in maps - significantly reduces size on disk and GPU memory used.
- Allow boundary type to be optional for Apollo HD map import.
- Fix Python API to be able load maps & vehicles that are shared between multiple users.
- Separated bundle file format version for map and vehicle bundles.
- Improved headlights for EGO vehicles.
- Improved HD map annotation icons.
- Fixed Sedan NPC mesh.