TEST: Outlier detection refactoring

[braingram]

This is a test PR to run the CI.

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

• [ ] 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
• [ ] All comments are resolved
• [ ] Make sure the JIRA ticket is resolved properly

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 64.30108% with 166 lines in your changes missing coverage. Please review.

Project coverage is 59.53%. Comparing base (064208c) to head (163038b). Report is 1 commits behind head on master.

Files	Patch %	Lines
jwst/outlier_detection/ifu.py	13.67%	101 Missing :warning:
jwst/outlier_detection/spec.py	22.85%	27 Missing :warning:
jwst/outlier_detection/outlier_detection_step.py	66.66%	12 Missing :warning:
jwst/outlier_detection/utils.py	91.78%	12 Missing :warning:
jwst/outlier_detection/tso.py	82.45%	10 Missing :warning:
jwst/resample/resample_spec.py	81.25%	3 Missing :warning:
jwst/resample/resample.py	94.11%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #8613 +/- ## ========================================== - Coverage 59.56% 59.53% -0.04% ========================================== Files 391 392 +1 Lines 39285 39181 -104 ========================================== - Hits 23402 23328 -74 + Misses 15883 15853 -30 ```

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