New/Enhanced Type: FireAlarm / CO Alarm

[Apollon77]

Matter has combined devices that could be a Smoke alarm and/or CO2 Alarm.

For ioBroker I would propose:

• Definition of a new "COAlarm" devicetype with a new role sensor.alarm.co
• ENahncement of the "FireAlarm" to optionally also have such a state with role sensor.alarm.co
  With this we would allow single CO and Fire Alarm devciesbut also combined ones.

Optionally (Matter wise) the data provided also would support the following:

• different levels of Alarm (Normal, Warn, Critical)
• information if alarm is muted currently
• information if a "test" is in progress
• EOL and potentially expiry date information of the device
• information if the alarm originated from this device or from an other interconnected device

We could decide to also add these optionally to ioBroker too.

[Garfonso]

I like your proposal.

IMHO the additional info is tempting to add, too. Not sure if we have a lot of devices, that will support it.

[GermanBluefox]

Sounds good