message: vertexcodec: Fix clang-cl build
  For clang-cl, _MSC_VER is defined but we need to use clang's __cpuid
  intrinsic instead of MSVC variant because that's what we include.
diff: @@ -1049,7 +1049,7 @@ static const unsigned char* decodeVertexBlockSimd(const unsigned char* data, con
  static unsigned int getCpuFeatures()
  {
  int cpuinfo[4] = {};
  -#ifdef _MSC_VER
  +#if defined(_MSC_VER) && !defined(__clang__)
  __cpuid(cpuinfo, 1);
  #else
  __cpuid(1, cpuinfo[0], cpuinfo[1], cpuinfo[2], cpuinfo[3]);
  