Add `APX` ISA extension #987

Job	Run time
fuzzing (address)	1m 24s
CMake build + tests (macos-latest )	12s
fuzzing (undefined)	1m 20s
Meson build + tests (macos-latest, debug default)	41s
CMake build + tests (macos-latest -DZYAN_NO_LIBC=ON)	13s
Amalgamated build (Ubuntu 22.04)	4s
CMake build + tests (windows-2022 )	1m 24s
fuzzing (memory)	1m 29s
CMake build + tests (windows-2022 -DZYAN_NO_LIBC=ON)	1m 13s
CMake build + tests (ubuntu-22.04 )	9s
MSBuild build (windows-2022)	1m 40s
CMake build + tests (ubuntu-22.04 -DZYAN_NO_LIBC=ON)	19s
Meson build + tests (windows-2022, debug default)	2m 9s
CMake build + tests (ubuntu-22.04 -DZYDIS_MINIMAL_MODE=ON -DZYDIS_FEATURE_ENCODER=OFF)	5s
Meson build + tests (ubuntu-22.04, debug default)	19s
CMake build + tests (windows-2022 -TClangCL)	54s
Meson build + tests (windows-2022, debug NO_LIBC)	1m 38s
Meson build + tests (ubuntu-22.04, debug NO_LIBC)	26s
Meson build + tests (macos-latest, release default)	21s
Meson build + tests (windows-2022, release default)	1m 55s
Meson build + tests (ubuntu-22.04, release default)	37s
Meson build + tests (windows-2022, release NO_LIBC)	1m 42s
Meson build + tests (ubuntu-22.04, release NO_LIBC)	11s
Meson build + tests (ubuntu-22.04, minsize )	23s
	20m 48s

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