Interactive shell for sharkd with some auto-completion, history, and
JSON beautification support. Quick and dirty, tested with Python 3.7.4
on Arch Linux.
Change-Id: I5dec1ac07230bfcbc3165a36b5c7f088ee65a8f7
Reviewed-on: https://code.wireshark.org/review/34583
Reviewed-by: Peter Wu <peter@lekensteyn.nl>