message: Don't emit warnings on YCbCr jpegs
diff: @@ -250,7 +250,6 @@ asset::IAsset* CImageLoaderJPG::loadAsset(io::IReadFile* _file, const asset::IAs
  case JCS_YCbCr:
  cinfo.out_color_components = 3;
  cinfo.output_gamma = 2.2333333f; // output_gamma is a dead variable in libjpegturbo and jpeglib
  - os::Printer::log("YCbCr color space is unsupported:", _file->getFileName().c_str(), ELL_ERROR);
  // it seems that libjpeg does Y'UV to R'G'B'conversion automagically
  // however be prepared that the colors might be a bit "off"
  // https://en.wikipedia.org/wiki/YCbCr#JPEG_conversion
  @@ -308,7 +307,9 @@ asset::IAsset* CImageLoaderJPG::loadAsset(io::IReadFile* _file, const asset::IAs
  switch (cinfo.jpeg_color_space)
  {
  case JCS_GRAYSCALE:
  - // should we gamma convert from 2.2333 to 1.0 ?
  + // should we gamma convert from 2.2333 to 1.0 (depends on whether jpeg greyscale is gamma encoded) ?
  + // I don't want implicit conversion by libjpeg to RGB8
  + /// image = new asset::CImageData(????????,nullOffset,imageSize,0u,asset::EF_R8_UNORM,1);
  break;
  case JCS_RGB:
  image = new asset::CImageData(output->getPointer(),nullOffset,imageSize,0u,asset::EF_R8G8B8_SRGB,1);
  