Many NV2A texture and surface formats unsupported

[JayFoxRox]

See Texture.py (decodeTexture) for the implementation of texture formats. This function should also be cleaned up in the future.

The surfaces will be mapped to texture formats. So this change will apply to both. The mapping is done in Trace.py (recordPGRAPHMethod, method 0x17FC if data is 0)