Core 76: Don't extract firewall config files.

While updating the configfiles of the firewall has been extracted and replaced,
the existing one's if the new firewall was allready installed. As a result of
this behaviour all firewall rules, settings or created groups were lost. We now
try to create them by using touch if they do not exist.
firewall: Move scripts from /var/ipfire/firewall/bin to /usr/lib/firewall.
Merge remote-tracking branch 'stevee/core-76-update' into next
core76: Cleanup rootfile.

p2protocols is not an actual configuration file editable
by the user.