Missing public/exported docstrings

[christiangnrd]

Found using Docs.undocumented_names from 1.11. They should also be added to the documentation when a docstring is created.

Metal

• [X] Metal
• [X] is_managed
• [X] is_private
• [X] is_shared
• [X] device
• [X] MtlMatrix
• [X] MtlVecOrMat
• [X] MtlVector
• [X] MetalBackend
• [X] MtlDeviceMatrix
• [X] MtlDeviceVector
• [X] MTL
• [X] MPS

MTL

Important:

• [X] Managed
• [X] Private
• [X] Shared
• [X] CPUStorage

Other:

• [ ] air_support
• [ ] air_version
• [ ] is_m1
• [ ] is_m2
• [ ] is_m3
• [ ] macos_version
• [ ] metal_support
• [ ] metal_version
• [ ] metallib_support
• [ ] darwin_version
• [ ] supports_family
• [ ] add_functions!
• [ ] append_current_function!
• [ ] commit!
• [ ] dispatchThreadgroups!
• [ ] endEncoding!
• [ ] set_buffer!
• [ ] set_function!
• [ ] supports_destination
• [ ] MTLBinaryArchive
• [ ] MTLBinaryArchiveDescriptor
• [ ] MTLBuffer
• [ ] MTLCompileOptions
• [ ] MTLComputeCommandEncoder
• [ ] MTLComputePipelineDescriptor
• [ ] MTLComputePipelineState
• [ ] MTLCreateSystemDefaultDevice
• [ ] MTLEvent
• [ ] MTLFence
• [ ] MTLFunction
• [ ] MTLFunctionDescriptor
• [ ] MTLHeap
• [ ] MTLHeapDescriptor
• [ ] MTLLibrary
• [ ] MTLLibraryFromData
• [ ] MTLLibraryFromFile
• [ ] MTLOrigin
• [ ] MTLRegion
• [ ] MTLSharedEvent
• [ ] MTLSharedEventHandle
• [ ] MTLSize
• [ ] MTLTexture
• [ ] MTLTextureDescriptor
• [ ] MTLCommandBuffer
• [ ] MTLCommandBufferDescriptor
• [ ] MTLCommandQueue
• [ ] ReadUsage
• [ ] ReadWriteUsage
• [ ] WriteUsage
• [ ] MTLResource
• [ ] MTLBlitCommandEncoder
• [ ] append_copy!
• [ ] append_fillbuffer!
• [ ] append_sync!

Unexport:

• [x] @sv_str
• [x] SimpleVersion
• [x] AS

[maleadt]

I guess we should first focus on documenting Metal, before moving to MTL/MPS which aren't likely to be imported or even used by users directly. For these modules, the documentation would likely be a copy of Apple's documentation anyway (which is similarly why many of these aren't thoroughly documented in CUDA.jl).

A couple should also be unexported: SimpleVersion/@sv_str definitely, and AS probably too.