This patch series implements `ID3DXEffect::SetRawValue()` for the simplest cases, which are vec4s and matrix 4x4s.
-- v2: d3dx9: Fixup return values for D3DXPT_BOOL parameters in ID3DXEffect::GetValue(). d3dx9: Add support for setting 4x4 matrices in ID3DXEffect::SetRawValue(). d3dx9: Partially implement ID3DXEffect::SetRawValue(). d3dx9/tests: Add tests for ID3DXEffect::SetRawValue().