support-attribute for nodes

[AiyionPrime]

A helper that determines whether a given router model is currently supported by gluon.

The value could be an enum:

• supported for devices which are in the target definitions of any currently supported gluon-release
• unsupported for devices which are not

We could extend the approach with

• deprecated for devices which are in the target definitions of any supported gluon-release but are not anymore in gluons master
• upcoming for devices which are not in any currently supported gluon-release but in master

I think this would really help gaining an overview of a communities demographic router distribution; a topic that will only become more urgent for all the communities that still haven't dealt with 4/32-devices which have gone in gluon for a while now and won't be coming back.

I think this project would be better equipped to aggregate the support-state than say the meshviewer or other map-tools. But they could build upon this field and show warnings and notes for each device.