JP-3560: Updating CHARGELOSS Flagging

[kmacdonald-stsci]

Resolves JP-3560

Closes #8331

This PR addresses CHARGELOSS flagging. The original implementation assumed an integration ramp that has a group above the CHARGELOSS threshold will have all remaining groups in the ramp above the CHARGELOSS threshold, so will also get the CHARGELOSS flag. This is not true. Additionally, the charge migration step flags nearest neighbors, the four pixels to the north, south, east, and west, with CHARGELOSS in the groups flagged in the ramp of interest. All subsequent groups in nearest neighbors also need to be flagged with CHARGELOSS and DO_NOT_USE.

The charge migration step has been changed to find the first group in an integration ramp that is above the CHARGELOSS threshold and not flagged as DO_NOT_USE, then it flags that group and all subsequent groups in the ramp with CHARGELOSS and DO_NOT_USE. The charge migration step also flags nearest neighbors in the same groups.

Checklist for maintainers

• added entry in CHANGES.rst within the relevant release section
• updated or added relevant tests
• updated relevant documentation
• added relevant milestone
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below.
  How to run regression tests on a PR
• Make sure the JIRA ticket is resolved properly

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.27%. Comparing base (4cc0ac1) to head (e66abdc).
Report is 18 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8336      +/-   ##
==========================================
+ Coverage   75.15%   75.27%   +0.11%     
==========================================
  Files         470      474       +4     
  Lines       38604    39112     +508     
==========================================
+ Hits        29014    29441     +427     
- Misses       9590     9671      +81     

Flag	Coverage Δ		*Carryforward flag
nightly	77.33% <ø> (-0.07%)	⬇️	Carriedforward from de5d2b6

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[kmacdonald-stsci]

Regression testing: https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1284/

[hbushouse]

Regression test run shows a bunch of unrelated differences in NIRSpec results due to a recent CRDS ref file update, as well as the expected differences in NIRISS tests. So that all looks OK.