Add support to register TRV device on Node-Red

Just checked and there still isn’t a TRV device type in the register device Node Red node. Nor is there a capability of target temperature so I can fake one. I don’t know why this device type is still not present. I thought it’d be added by now. I last looked when the TRV was fairly new and was unsurprised it was absent. Now I am.

Thanks for the proposal! But it might take some time before we evaluate and schedule new Node-Red features for the next major version.

I’ve turned it into a feature request, so our team can track it.

Thx again.