JP-3173: Add NIRSpec optical path constraints for TSO associations

[melanieclarke]

Resolves JP-3173

Closes #8240

NIRSpec TSO associations are created via the general TSO rules (Asn_Lv2SpecTSO and Asn_Lv3TSO), which do not currently have a check on the valid optical paths for NIRSpec. This results in associations being created for NRS2 in some modes for which no light falls on that detector (e.g. S1600A1, prism, clear). This PR adds NIRSpec optical path constraints to the TSO rules.

Checklist for PR authors (skip items if you don't have permissions or they are not applicable)

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

[melanieclarke]

Regression tests started here: https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1499/

[melanieclarke]

Looking at regtest results...

I was expecting the changes to test_against_standard[pool_021_tso] and test_against_standard[pool_022_tso_noflag]: I updated the pool files in the repository to give them the new values needed to plan NIRSpec TSO. The associations are still created, they just have different names.

I did not expect the differences for these:

• test_against_standard[jw84600_20180824T212338_pool]
• test_against_standard[jw93056_20171108T060152_pool]
• test_against_standard[jw84600_20180824T212338-valid-msametfl_pool]]

But it looks like all of these are using early pool files which have FXD_SLIT = null, so there are TSO associations that are no longer being created, even though they would be if FXD_SLIT was populated.

I think the other changes are unrelated. I'm not sure why the jwst.associations.tests.test_level3_duplicate test failed, though. I can't reproduce it locally, on my branch or main.

[codecov[bot]]

Codecov Report

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

Project coverage is 58.13%. Comparing base (b7e0b10) to head (4ab595a). Report is 317 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #8537 +/- ## ========================================== + Coverage 58.02% 58.13% +0.10% ========================================== Files 388 388 Lines 38977 38972 -5 ========================================== + Hits 22617 22655 +38 + Misses 16360 16317 -43 ```

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