Add IANA service name and description enrichment to Zeek's known_services.log

[IdahoManny]

Adds support for parsing a custom Zeek log (iana_service.log) adding fields to zeek's known_services.log that enriches connections with IANA service names and categories descriptions based on protocol and destination port.

Includes:

• IANA_Enrichment.zeek iana_registry.zeek
• iana_service_map.txt (this is now dynamically generated)
• 10XX_zeek_iana_service.conf (parsed with known_services.log)

Enables deterministic service attribution using official IANA data.

IANA_Enrichment.zip

[mmguero]

New table on the "Zeek Known Summary" dashboard: