Rename ring longitude fields

[rfrenchseti]

• Fixes #N/A
• Were any Django, import pipeline, or table_schema files modified? Y
• Were any JavaScript or CSS files modified? N
  • If YES:
  • JSHINT run on all affected files: Y/NA
  • Tested on Chrome, Firefox, Safari, Edge, and iOS: Y/NA (Remember to test all browser sizes)
  • Tested for race conditions (with delayed API calls if applicable): Y/NA
• Was the documentation reviewed for necessary changes or additions? Y
  • About
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  • Import/database schema

Description of changes:

• Renamed Observed J2000 Longitude to Observed Longitude WRT RA=0
• Renamed Sub-Solar J2000 Longitude to Sub-Solar Longitude WRT RA=0
• Renamed Sub-Observer J2000 Longitude to Sub-Observer Longitude WRT RA=0
• Renamed Edge-On J2000 Longitude to Edge-On Longitude WRT RA=0
• Renamed Observed Ascending Node Longitude to Observed Longitude WRT Ascending Node
• Renamed Sub-Solar Ascending Node Longitude to Sub-Solar Longitude WRT Ascending Node
• Renamed Sub-Observer Ascending Node Longitude to Sub-Observer Longitude WRT Ascending Node
• Renamed Edge-On Ascending Node Longitude to Edge-On Longitude WRT Ascending Node
• Changed field order to have Ascending Node fields together first, then RA=0 fields together
• Slight change to tooltip for rms_index to support PDS4 index files

Known problems:

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (7bd7691) to head (e7ba333).

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```diff @@ Coverage Diff @@ ## main #1366 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 41 41 Lines 25085 25084 -1 Branches 1221 1221 ========================================= - Hits 25085 25084 -1 ```

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