Add `APX` ISA extension #1007

Job	Run time
MSBuild build (windows-2022)	1m 31s
Amalgamated build (Ubuntu 22.04)	7s
fuzzing (address)	1m 29s
CMake build + tests (macos-latest )	13s
fuzzing (undefined)	1m 22s
Meson build + tests (macos-latest, debug default)	21s
CMake build + tests (macos-latest -DZYAN_NO_LIBC=ON)	13s
fuzzing (memory)	1m 25s
Meson build + tests (windows-2022, debug default)	1m 49s
Meson build + tests (ubuntu-22.04, debug default)	18s
CMake build + tests (windows-2022 )	1m 10s
Meson build + tests (windows-2022, debug NO_LIBC)	1m 43s
CMake build + tests (windows-2022 -DZYAN_NO_LIBC=ON)	42s
Meson build + tests (ubuntu-22.04, debug NO_LIBC)	8s
CMake build + tests (ubuntu-22.04 )	6s
Meson build + tests (macos-latest, release default)	21s
CMake build + tests (ubuntu-22.04 -DZYAN_NO_LIBC=ON)	6s
Meson build + tests (windows-2022, release default)	2m 36s
CMake build + tests (ubuntu-22.04 -DZYDIS_MINIMAL_MODE=ON -DZYDIS_FEATURE_ENCODER=OFF)	8s
Meson build + tests (ubuntu-22.04, release default)	20s
CMake build + tests (windows-2022 -TClangCL)	1m 49s
Meson build + tests (windows-2022, release NO_LIBC)	1m 21s
Meson build + tests (ubuntu-22.04, release NO_LIBC)	9s
Meson build + tests (ubuntu-22.04, minsize )	22s
	19m 49s

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