Add a file parser and dissector that can handle the output of
`journalctl -o export`. From here we can add a systemd journal extcap
and possibly support for the JSON and binary formats.
Change-Id: I01576959b2c347ce7ac9aa57cdb5c119c81d61e9
Reviewed-on: https://code.wireshark.org/review/29311
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>