Support free@home scenes and light groups

[pgerke]

As a user I want to trigger scenes that have been created in free@home.

NB: In the current implementation of free@home, the scenes are treated as pseudo devices. It is not possible to find out via the local API which free@home devices are included in a scene. So with the implementation of this ticket, it will be possible to trigger scenes like pressing a button.

[pgerke]

Extended the scope of the ticket to light groups.

[pgerke]

Published a pre-release version to npm: https://www.npmjs.com/package/homebridge-freeathome-local-api/v/1.5.0-pre.1

Scenes are working nicely, light groups not so much. The state of a light group is not reflected correctly on the panel. This needs some additional work I guess... Unit tests also need to be extended.

[korneliuscode]

I tried the new version, works great. The problem is just that the devices don’t show up in the HomeKit app.

[pgerke]

That's strange... The scenes and light groups should show up in the default room. Works for me at least...

[floriangrotz]

Maybe cross connected to #48 - as Scenes have the prefix FFF

[korneliuscode]

Given it shows up on homebridge I assume an issue between homebridge and HomeKit. Therefore should work in the plug-in. Perhaps I have to reinstall every time new devices are added (not owning a HomePod).

[pgerke]

Scenes are done in #39, light groups still to be done.

[pgerke]

I'm giving up on the light groups. When I'm sending the same updates I'm recieving when I'm triggering the light groups from the free@home app from Apple Home, the lights are going on, but the light group remains off in free@home. This leads to inconsistent states and very bad user experience in mixed operation. I can only assume that some magic is happening in the SysAP that is not visible on the local API.

[github-actions]

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