JP-3227: Add analog of HST's tweakback tool

[mcara]

Resolves JP-3227

This PR adds functionality similar to HST's tweakback task to be able to transfer an alignment solution from a file to another.

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. - no need to run regression tests (new feature)
  How to run regression tests on a PR
• Make sure the JIRA ticket is resolved properly

[codecov]

Codecov Report

Patch coverage: 92.15% and project coverage change: +0.02 🎉

Comparison is base (ca78a02) 77.46% compared to head (9e05107) 77.48%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7573      +/-   ##
==========================================
+ Coverage   77.46%   77.48%   +0.02%     
==========================================
  Files         456      456              
  Lines       36540    36591      +51     
==========================================
+ Hits        28307    28354      +47     
- Misses       8233     8237       +4     

Flag	Coverage Δ		*Carryforward flag
nightly	77.54% <ø> (ø)		Carriedforward from c7726ec

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
jwst/tweakreg/utils.py	93.33% <92.15%> (-2.50%)	⬇️

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[hbushouse]

Other than a couple of minor typos it looks OK to me.

One general question: it looks like this will just be available as a function that can be called from the tweakreg.utils module, right? It's not a new standalone step in the jwst package.

[mcara]

Typos fixed.

[hbushouse]

LGTM

@nden any comments?

[nden]

The imports don't look good to me. I'll create a PR to fix them.