Scheme Labels Form/Editor

[robgaston]

Scheme names will be set using the "Label" nodegroup:

"metatype" here should be pre-populated (I think) with a default value for semantic purposes so it does not need to be shown here. I think that we will need to show the other fields here in this form.

Note, there are validation rules that we will want to enforce here in the API around the saving of labels. In particular: a given language should only have one label with the type "preflabel".

Mock-up for this section: