Add visionOS support #1382

Job	Run time
Test build-std (aarch64-tvos)	3m 19s
Clippy	13s
Test CUDA support	25s
MSRV (ubuntu-latest)	22s
Test build-std (aarch64-tvos-sim)	4m 22s
MSRV (windows-latest)	41s
Test build-std (x86_64-tvos)	3m 9s
Rustfmt	17s
Test (stable)	31s
Test (beta)	1m 7s
Test (nightly)	33s
Test (linux32)	1m 25s
Test (macos)	3m 44s
Test (aarch64-macos)	46s
Test (aarch64-ios)	53s
Test (win32)	1m 24s
Test (win64)	2m 27s
Test (mingw32)	2m 18s
Test (mingw64)	1m 40s
Test (windows-2019)	2m 55s
Test (windows-aarch64, windows-latest, stable, aarch64-pc-windows-msvc, --no-run)	1m 18s
Test (windows-clang, windows-2019, stable, x86_64-pc-windows-msvc, clang, clang++)	3m 26s
Test (windows-clang-cl, windows-2019, stable, x86_64-pc-windows-msvc, clang-cl, clang-cl)	3m 34s
	40m 49s

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