feat: integrate community-id

[qjerome]

This PR aims at integrating community-id ( https://github.com/corelight/community-id-spec) into some of the kunai logs:

This feature is valuable on the following aspects:

• it allows to correlate kunai log with external log/alert sources such as IDS or traffic analysis tools
• given a community-id from an external source and thanks to the task UUIDs used in kunai it is possible to find the exact root (application, parents and all ancestors) of such traffic.

Fields of applications:

• Incident Response
• Threat-Hunting
• Network alert investigation
• Understand which application generate which traffic

Limitations:

• NAT traffic (often used in Linux containers) won't produce community-id that can be correlated with traffic analysis tools

fix #74