Contact Sensor

[teichtaucher]

Is your feature request related to a problem? Please describe:

No, I'm just missing the Contact Sensor to see in Google Home if windows are open or closed. In Homebridge they are visible as a device.

Describe the solution you'd like:

Please add the missing device in homebridge-gsh. In the old version I had a patch using the attached file:
contact-sensor.zip
It was working without any flaw. Maybe you can reuse this.

Describe alternatives you've considered:

Additional context:

[NorthernMan54]

I just refactored the interface between HAP and the plugin, so this would need to be updated to work.

If you want to make the required changes, and submit a pull request I can include it.