xaphier

Add overloads for int & uint wave scan intrinsics

2

The missing AmdDxExtShaderIntrinsics_WaveScan overloads for uint & int types broke all wave scan functions using uint or int types. This fixes issue #28

PrefixSum and PostfixSum not working

3

Even in a very simple compute shader (DX11), the AmdDxExtShaderIntrinsics_WavePrefixSum and AmdDxExtShaderIntrinsics_WavePostfixSum produce wrong results. I tried on different hardware (RX 480, WX7100 and WX9100) all giving completely wrong results....