- fix typing hint error in PyBMap
- remove UNKNOWN_PF in PixelFormat enum in PyBMap.virtools_type. because it is a fallback value and should not be used directly. so when I apply it to Blender plugin, it cause a error.
- provide lit mode and wrap mode getter and setter in CKMesh.
- add lost flags setter in CKMesh.
- show lit mode and wrap mode data in Unvirt.
- add interface for lit mode in BMap, because some old Ballance map use lit mode to light objects.
- expose a raw c callback when creating bmap to allow user decide how the log output by themselves.
- change python bindings for BMap interface changes.
