WIP JP-4313: Support NIRCam superstripe modes

[melanieclarke]

Resolves JP-4313

WIP: updates to stripe handling for new NIRCam imaging superstripe modes. Early draft for discussion.

The new modes will include some with pure super stripes: no reference pixels included. In this case, reference pixels are skipped via the subarray start value, and all skip and read values are 0.

Todo: update collate_superstripes to allow subarrays along the slow axis

Other changes here:

• add stripe_utils API to RTD

Tasks

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  • update or add relevant tests
  • update relevant docstrings and / or docs/ page
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    • Do truth files need to be updated ("okified")?
      • after the reviewer has approved these changes, run okify_regtests to update the truth files
• if a JIRA ticket exists, make sure it is resolved properly

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.38%. Comparing base (ff76589) to head (d780284).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10534   +/-   ##
=======================================
  Coverage   86.38%   86.38%           
=======================================
  Files         373      373           
  Lines       40068    40076    +8     
=======================================
+ Hits        34612    34620    +8     
  Misses       5456     5456           

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