JSON API - Missing attributes

[ewlarson]

The BTAA Geoportal has a JSON API:
https://geo.btaa.org/?format=json&search_field=all_fields&q=

Using that JSON API and bolt.new, I created an example React application to display data from the BTAA Geoportal:
https://cheery-sunburst-777cea.netlify.app/ (Note: this app could go down anytime).

However, to make a fully featured React app, via our Geoportal JSON API, we need to expose some additional data attributes:

• dct_references_s — to access external downloads or IIIF imagery, etc.
• item_viewer — so we can call the GBL Javascript library and display map layer previews, IIIF images, etc.
• centroids — homepage visualization
• locn_geometry — for result hit visualization

Likely more.