- use a nasty way to update stb-image library (do not use new resize library, use moved depracted one. because idk how to program with new one. that lack doc).
- update virtools type defines in BMapSharp. expand its ctor for convenient usage.
- finish BMMaterial bindings.
- create a generic value getter setter for convenient calling.
- fix codegen error of BMapSharp (accident fallthrough for CKBYTE type and wrong marshal type for enum type).
