Major organization revamp

src/lib.rs

src/linuxlike/b32/android.rs

src/linuxlike/b32/mips.rs

src/linuxlike/b32/mod.rs

src/linuxlike/linux/mod.rs

src/unix/android.rs

src/unix/bsd/apple/b32.rs

src/unix/bsd/apple/b64.rs

src/unix/bsd/apple/mod.rs

src/unix/bsd/freebsdlike/dragonfly.rs

src/unix/bsd/freebsdlike/freebsd.rs

src/unix/bsd/freebsdlike/mod.rs

src/unix/bsd/freebsdlike/x86.rs

src/unix/bsd/freebsdlike/x86_64.rs

src/unix/bsd/mod.rs

src/unix/bsd/openbsdlike/mod.rs

src/unix/mod.rs

src/unix/notbsd/android.rs

src/unix/notbsd/linux/mips.rs

src/unix/notbsd/linux/mod.rs