Set self for JSON path in SignalK root object from uuid in AppConfig

bnthnrequested to merge
feature/signalk-self-as-key-for-simulator into develop

see https://signalk.org/specification/1.5.0/doc/data_model.html

Also always present in the full model is the self key. The value of self is the key within the vessels object which is the local boat. Effectively, it is a pointer into the vessels object.

Merge request reports