Shader gen now produces a shaderdata class - this should reduce full recompilation of shaders when a macro switch happens.
FileStream can now also be setup to be async write, so it will write out the file on a separate thread hopefully freeing up the main thread to continue working.
- Supports GL, D3D9 & D3D11
- Extends vertex formats & shadergen to support blend indices and weights
- Adds basic support for using 4x3 matrices for shader constants
- Supports software fallback
