Remove/cleanup najaVenator from cobraCharmer

The najaVenator module in ics_fpsActor is mostly a wrapper around some database calls, but it's creating circular dependencies that make pip installing difficult. The same functionality could be achieved with tools in ics_utils or spt_operational_database.

The dependency on najaVenator should be removed from cobraCharmer (which is the only place it's used outside fpsActor) and replaced with other opdb access methods from ics_utils