Add btrfs-progs

Add netcat and iperf3.
See: https://git.seblu.net/seblu/infra/issues/42
Related to infra#42

- Add arch-install-scripts

- Add base package

- remove most (less is better)
- remove mkinitcpio (not mandatory on container)

Add pigz

- add nmon

Required to build initrd

- Fix installation of package dependencies in CI
- Remove not needed chmod
- Only build when PKGBUILD are changed

- Remove debug commands
- Only build when change on PKGBUILD

add dosfstools

pull ceph and glusterfs for free

- add python2
- replace vim-minimal by vim

Use timesyncd instead