Changes needed for new PdsFile implementation

[rfrenchseti]

• Fixes #N/A
• Were any Django, import pipeline, or table_schema files modified? Y
  • If YES:
  • Database used (or new import): New import
  • FLAKE8 run on modified code: Y
  • All Django tests pass: Y
  • Code coverage run and still at 100%: 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? NA
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Description of changes:

Changes necessary to work with new rms-pdsfile module.

Known problems:

[codecov[bot]]

Codecov Report

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

Comparison is base (b899d84) 100.00% compared to head (3a3f17d) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1338 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 41 41 Lines 23101 23101 Branches 1217 1217 ========================================= Hits 23101 23101 ```

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