Adds option for cutout output to asdf file

[havok2063]

This PR adds the option to output the cutout as an asdf file, instead of a fits file. The asdf cutout file is a minimal tree structure, mirroring the format of the original roman image, i.e.

asdf tree:
 - "roman":
   - "meta":
     - "wcs" - the gwcs of the cutout 
   - "data" - the cutout data

The included wcs is a sliced gwcs object from the original input to the cutout shape. This option was chosen to try to preserve as much as possible the original image transformations. It's a bit of a hack as there's no built-in way of slicing a gwcs yet, nor does astropy.Cutout2D support gwcs input yet.

It also adds a test for the RA=0 edge case.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d31a3cf) 94.59% compared to head (78fcfce) 94.71%.

❗ Current head 78fcfce differs from pull request most recent head 3ab1490. Consider uploading reports for the commit 3ab1490 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #116      +/-   ##
==========================================
+ Coverage   94.59%   94.71%   +0.11%     
==========================================
  Files           9        9              
  Lines        1481     1513      +32     
==========================================
+ Hits         1401     1433      +32     
  Misses         80       80              

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[braingram]

Thanks for the review request! At the moment I can only comment on the asdf usage which looks great to me!