nostromo: fix installed but not shipped /run and /run/nostromo warnings

Changes:
- Remove unnecessary -c option from install
- Add tmpfiles.d config to create /run/nostromo when systemd is
  enabled in DISTRO_FEATURES
- Add postinst script to create /run/nostromo using tmpfiles.d if
  running systemd (detected by existence of /sys/fs/cgroup/systemd),
  otherwise using populate-volatile.sh if it exists
- Remove /var/log/nostromo and /var/run/nostromo from package

Signed-off-by: Jonathan Liu <net147@gmail.com>