Metal tvOS 14.0 Beta 1 to Beta 2 API Differences

MTLComputePipeline.h

Removed MTLComputePipelineDescriptor.textureWriteRoundingMode

Removed MTLComputePipelineState.textureWriteRoundingMode

MTLDevice.h

Removed MTLRoundingMode

Removed MTLRoundingModeDefault

Removed MTLRoundingModeRTZ

Removed MTLRoundingModeRTNE

MTLRenderPipeline.h

Removed MTLRenderPipelineDescriptor.textureWriteRoundingMode

Removed MTLRenderPipelineState.textureWriteRoundingMode