Updates kafka config to mainline plugin
Updates kafka config to mainline plugin

Depends on the following to be merged in:

bro-plugin: kafka - Patch to set default to send all logs with option to whitelist or blacklist
https://bro-tracker.atlassian.net/browse/BIT-1745

bro-plugin: kafka - Patch to configure JSON timestamp
https://bro-tracker.atlassian.net/browse/BIT-1745
mocyber/rock-scripts