Goodbye GNU, hello BSD!

I spent some time modifying my Linux distro BitBake/Yocto recipes to migrate from GNU coreutils (and BusyBox) to FreeBSD coreutils, specifically chimerautils, the ported FreeBSD core utilities used in Chimera Linux.

I did this to add some extra security (*BSD is normally more security-focused and scrutinized, afaik) and to align a bit more with UNIX philosophy ^_^