update tool box

https://forum.manjaro.org/t/suggest-remove-lib32-from-minimal/147500

There is several small issues which can be fixed the the attached patch

feat-no-multilib-bugfix-defaults-conf.patch

1. issue #341 (closed) (shell check)
2. issue #340 (closed) (cosmetics for data/mkinitcpio.conf)
3. feature to disable multilib from command line -n - affecting bin/buildiso.in, lib/util.sh, lib/util-iso.sh
4. makefile missing cleanup check-yaml
5. data/pacman-default.conf -> removed community, enable ParallelDownloads
6. data/pacman-multilib.conf -> removed community, enable ParallelDownloads

@philm all is tested and fully functional - but please check my patch