VideoToolbox macOS 10.13.2 to 10.13.4 API Differences

VTDecompressionProperties.h

Added kVTVideoDecoderSpecification_RequiredDecoderGPURegistryID

Added kVTVideoDecoderSpecification_PreferredDecoderGPURegistryID

VTErrors.h

Added kVTVideoDecoderRemovedErr