Implement max_align_t

ci/azure.yml

libc-test/build.rs

src/unix/bsd/apple/b32/align.rs

src/unix/bsd/apple/b32/mod.rs

src/unix/bsd/apple/b64/align.rs

src/unix/bsd/apple/b64/mod.rs

src/unix/bsd/freebsdlike/freebsd/x86_64/align.rs

src/unix/bsd/freebsdlike/freebsd/x86_64/mod.rs

src/unix/linux_like/android/b32/x86/align.rs

src/unix/linux_like/android/b32/x86/mod.rs

src/unix/linux_like/android/b64/aarch64/align.rs

src/unix/linux_like/android/b64/aarch64/mod.rs

src/unix/linux_like/android/b64/x86_64/align.rs

src/unix/linux_like/android/b64/x86_64/mod.rs

src/unix/linux_like/emscripten/align.rs

src/unix/linux_like/linux/gnu/b32/arm/align.rs

src/unix/linux_like/linux/gnu/b32/arm/mod.rs

src/unix/linux_like/linux/gnu/b32/mips/align.rs

src/unix/linux_like/linux/gnu/b32/mips/mod.rs

src/unix/linux_like/linux/gnu/b32/x86/align.rs