This adds a Gateway Mesh section to the web-interface (+ API endpoints)
to see the status op each Relay Gateway within the Gateway Mesh.
The Gateway Mesh (https://github.com/chirpstack/chirpstack-gateway-mesh)
is an experimental feature to extend LoRaWAN coverage throug Relay
Gateways.
All these files can be generated using the `make api` command and there
is no real need to commit these into the repo. Only the api/go files
need to be comitted of how the Go import system works.
This also updates the Rust, Go, JS and gRPC-web (JS) code generation and
UI build to use the nix-shell environment instead of using Docker.
By selecting a region configuration, devices using the device-profile
will only stick to the selected region configuration, rather than the
configurations provided by the selected region common-name.
This change also renames the region 'name' option to 'id' in the region
configuration, as well it adds a 'description' to provide a human
readable description, which is used in the drop-down in the UI.
This also fixes the JS API generation. In a previous commit the the
protobuf package was updated, but the latest protobuf compiler no longer
supports generating JS code (this now requires an external plugin). This
has been fixed.
Please note that if you have implemented custom ADR algorithms that are
referring to the 'regionName' key, that you must change this to
'regionConfigId' (see the ADR code example).
