[FEATURE] Add Zabbix logout function to CLI

[TheNetworkGuy]

Make sure that the Start() function is allowed to have additional filters. This ensures that a sync can be started for a single host instead of the more broader configuration filter.

[TheNetworkGuy]

Code has been created and validated over at https://github.com/TheNetworkGuy/netbox-zabbix-sync/tree/feature/%23169

[TheNetworkGuy]

Implemented in prod.

[q1x]

I don't see an option to invoke this from cli.py, do we need to add that?