Merge 'lat-lon-map-cell-distance-list' view into 'lat-lon-map-cell-list'

[maurizi]

Overview

• Adds a 'distance' parameter to 'lat-lon-map-cell-list' view as well as both of the lat/lon data views, which defaults to 0 (current behavior).
• Removes the now obsolete 'lat-lon-map-cell-distance-list' view

Demo

API response:

Notes

I changed the dataset attribute from a scalar to a list. I discussed this a with with @CloudNiner - while in reality it's unlikely that the same map cell is used for more than one dataset, it is technically possible according to our data model, and the SQL queries led to a list type more naturally than a scalar type.

Testing Instructions

• scripts/update
• scripts/server
• Verify that the new distance parameter is working correctly on the Map Cell, Scenario, and Indicator views
• Verify that the docs build and have updated content

Checklist

• [x] Does the python linter pass?
• [x] Do tests pass?
• [x] Has the API documentation been updated, or does this PR not require it?

Closes #860 Closes #861

[maurizi]

@CloudNiner I assigned @ddohler as an opportunity to dive into the CCAPI codebase a bit, but feel free to take a look as well if you'd like.

[maurizi]

@ddohler this is ready for another look