Keypad Chiming Zones
## Feature description
It would be great if the Chiming Zones of the keypads can be exposed as switches.

In BabyWare, via the keypad module's properties, it is currently possible to toggle zones to chime from the keypad when they open. If these toggles could be exposed as switches in PAI, we could switch these on or off, or automate according to a schedule in HA.