[FEAT] Apply zone restrictions to MQTT config

[leccelecce]

Is your feature request related to a problem? Please describe.
I have set some zones in Frigate, with accompanying configuration in Double Take to only process events with those zones.
However, it seems that mqtt images ignore this processing.

Describe the solution you'd like
I'd like my zones config in Double Take to be honoured i.e. don't process an mqtt image if it's not in the right zone.

Additional context
I am going to guess that the problem here is that mqtt publishes by Frigate just include the JPG image, and don't contain any metadata such as zones, so you can't tell. I am wondering whether the receipt of an mqtt message within the start and end period of an event could be used to essentially say, ignore this mqtt message from Frigate as it's arrived during an event outside a zone?

[leccelecce]

Doh - I hadn't realised that this can be done with Frigate's own MQTT config per-camera. Closing.