Add `APX` ISA extension #1032

Job	Run time
MSBuild build (windows-2022)	2m 15s
Meson build + tests (macos-latest, debug default)	20s
Amalgamated build (Ubuntu 22.04)	7s
Meson build + tests (windows-2022, debug default)	1m 33s
CMake build + tests (macos-latest )	14s
Meson build + tests (ubuntu-22.04, debug default)	10s
fuzzing (address)	11m 32s
CMake build + tests (macos-latest -DZYAN_NO_LIBC=ON)	13s
Meson build + tests (windows-2022, debug NO_LIBC)	3m 13s
fuzzing (undefined)	11m 20s
CMake build + tests (windows-2022 )	58s
Meson build + tests (ubuntu-22.04, debug NO_LIBC)	8s
fuzzing (memory)	11m 30s
CMake build + tests (windows-2022 -DZYAN_NO_LIBC=ON)	1m 25s
Meson build + tests (macos-latest, release default)	20s
CMake build + tests (ubuntu-22.04 )	24s
Meson build + tests (windows-2022, release default)	55s
CMake build + tests (ubuntu-22.04 -DZYAN_NO_LIBC=ON)	6s
Meson build + tests (ubuntu-22.04, release default)	20s
CMake build + tests (ubuntu-22.04 -DZYDIS_MINIMAL_MODE=ON -DZYDIS_FEATURE_ENCODER=OFF)	20s
Meson build + tests (windows-2022, release NO_LIBC)	1m 56s
CMake build + tests (windows-2022 -TClangCL)	55s
Meson build + tests (ubuntu-22.04, release NO_LIBC)	15s
Meson build + tests (ubuntu-22.04, minsize )	11s
	50m 40s

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