updates CONT::machined module to also check for systemd-nspawn containers (which is slightly dirty, but I opted to keep it in the same module for now because the restart call is the same);
adds a special CONT::other module that runs after all others to detect any containers of unknown type by pidns.
This is on top of #301.
This PR does two things:
CONT::machinedmodule to also check for systemd-nspawn containers (which is slightly dirty, but I opted to keep it in the same module for now because the restart call is the same);CONT::othermodule that runs after all others to detect any containers of unknown type by pidns.