JP-3151: Don't make associations for NRS2 IFU if detector not illuminated

[stscirij]

Filter dupes in mkpool.
Add requirement that no spec2 associations are made for NRS IFU settings that don't illuminate the NRS2 detector
Fix test that made such an association

Resolves JP-3151

Closes #7775

This PR addresses remaining issues with this ticket: only data with PATTTYPE with NODs, plus imprint and background exposures was being handled properly, but not all other types. In this PR, all spec2 associations check whether the nrs2 detector is illuminated before creating an association.

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 75.78%. Comparing base (2fb073e) to head (525710b).
Report is 22 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8395      +/-   ##
==========================================
+ Coverage   75.31%   75.78%   +0.47%     
==========================================
  Files         474      476       +2     
  Lines       38965    39450     +485     
==========================================
+ Hits        29345    29897     +552     
+ Misses       9620     9553      -67     

Flag	Coverage Δ		*Carryforward flag
nightly	77.65% <ø> (+0.31%)	⬆️	Carriedforward from 7ee0517

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[tapastro]

Regtests: https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1361/

[hbushouse]

Of the 3 association-related failures in the regtest, it's not obvious from the logs whether the changes are expected due to this update. Can you confirm?

[stscirij]

The 3 regression test failures in the developer PR test above are all because the truth files have NRS_IFU spec2 associations where there is no data on nrs2, so the PR code doesn't make them.

[hbushouse]

The 3 regression test failures in the developer PR test above are all because the truth files have NRS_IFU spec2 associations where there is no data on nrs2, so the PR code doesn't make them.

Great. So in that case, I hereby approve this PR. ;-)