message: tools: Add Win32 timers to codecbench
  This makes codecbench compile on Windows/MSVC
diff: @@ -13,6 +13,21 @@ double timestamp()
  {
  return emscripten_get_now() * 1e-3;
  }
  +#elif defined(_WIN32)
  +struct LARGE_INTEGER
  +{
  + __int64 QuadPart;
  +};
  +extern "C" __declspec(dllimport) int __stdcall QueryPerformanceCounter(LARGE_INTEGER* lpPerformanceCount);
  +extern "C" __declspec(dllimport) int __stdcall QueryPerformanceFrequency(LARGE_INTEGER* lpFrequency);
  +
  +double timestamp()
  +{
  + LARGE_INTEGER freq, counter;
  + QueryPerformanceFrequency(&freq);
  + QueryPerformanceCounter(&counter);
  + return double(counter.QuadPart) / double(freq.QuadPart);
  +}
  #else
  double timestamp()
  {
  