Apply new Result/TerriaError pattern to traits.fromJson()

[nf-s]

Apply new Result/TerriaError pattern to traits.fromJson()

This depends on #5429

This makes some changes to how we handle errors update/upserting JSON into the model. If an error is occurred while updating a trait in a model (for example, a trait doesn't exist) it will not interrupt updating the model — it will just add an error message and continue.

Checklist

• There are unit tests to verify my changes are correct or unit tests aren't applicable (if so, write quick reason why unit tests don't exist)
• I've updated CHANGES.md with what I changed.

[nf-s]

Example error message (unformatted):

Error loading map configuration

An error occurred while loading NEII Viewer map configuration — it may not display correctly. Please try reloading the map, and if the problem persists, please report it by sending an email to environment@bom.gov.au, or you can press the button below.

Developer details
An error occurred while loading initialization information from:
V7 Init URL from config https://raw.githubusercontent.com/TerriaJS/neii-viewer/master/wwwroot/init/neii-oceans.json.

Error loading initialization source

Failed to add members from JSON for model /

Error occurred while updating modelReferenceArrayTrait model "/" from JSON

Error upserting model JSON: //NEII Data Services – Conformant

Error updating model from JSON: //NEII Data Services – Conformant

Error occurred while updating model //NEII Data Services – Conformant from JSON

Error occurred while updating modelReferenceArrayTrait model "//NEII Data Services – Conformant" from JSON

Error upserting model JSON: //NEII Data Services – Conformant/Oceans (14)

Error updating model from JSON: //NEII Data Services – Conformant/Oceans (14)

Error occurred while updating model //NEII Data Services – Conformant/Oceans (14) from JSON

Error occurred while updating modelReferenceArrayTrait model "//NEII Data Services – Conformant/Oceans (14)" from JSON

Error upserting model JSON: //NEII Data Services – Conformant/Oceans (14)/ NSW Marine protected areas (NSW DPI)

Error updating model from JSON: //NEII Data Services – Conformant/Oceans (14)/ NSW Marine protected areas (NSW DPI)

Error occurred while updating model //NEII Data Services – Conformant/Oceans (14)/ NSW Marine protected areas (NSW DPI) from JSON

The property rectangle is not valid for type wfs-group.

This is very verbose, quite a few errors could be dropped