JP-3139: Add support for DQ flag propagation in the resample step

[mcara]

Resolves JP-3139

Closes #7766

This PR adds support for propagating all DQ flags (not just saturation) in resample. If users are interested only in one flag such as SATURATED, then it is possible to filter these out using bitwise AND on the resampled image's DQ:

from stdatamodels.jwst.datamodels import dqflags

saturated = np.bitwise_and(resampled_model.dq, dqflags.pixel["SATURATED"]).astype(bool)

Regression test: https://github.com/spacetelescope/RegressionTests/actions/runs/21736872626

Tasks

• If you have a specific reviewer in mind, tag them.
• add a build milestone, i.e. Build 12.0 (use the latest build if not sure)
• Does this PR change user-facing code / API? (if not, label with no-changelog-entry-needed)
  • write news fragment(s) in changes/: echo "changed something" > changes/<PR#>.<changetype>.rst (see changelog readme for instructions)
    • if your change breaks step-level or public API (as defined in the docs), also add a changes/<PR#>.breaking.rst news fragment
  • update or add relevant tests
  • update relevant docstrings and / or docs/ page
  • start a regression test and include a link to the running job (click here for instructions)
    • 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 86.53%. Comparing base (bbf1e5f) to head (72014f9).
⚠️ Report is 65 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10234      +/-   ##
==========================================
+ Coverage   85.98%   86.53%   +0.55%     
==========================================
  Files         368      366       -2     
  Lines       38457    38459       +2     
==========================================
+ Hits        33066    33281     +215     
+ Misses       5391     5178     -213     

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