M0008: Add ability to only force detector logic for a short duration

[otterdahl]

It would be useful to add an attribute to M0008 to only activate a detector logic for a short period of time, e.g. 1-2 seconds. That would eliminate to need to deactivate the detector logic afterwards. I believe this a common use case.

[emiltin]

The existing M0008 allows you to set the detector logic to on or off. We add a new optional attribute "duration"

Questions:

• Is a previous duration cancelled if you send a new command? Yes
• If you use a duration, and then send a new command without, is the previous duration cancelled? yes
• Does it revert to the previous value, or to the opposite of the value you force it to?
• Can a duration be used when you're not forcing?

[emiltin]

Also for inputs, outputs, emergency routes.

[emiltin]

what does duration=0 mean, and is it even allowed?