DM-33013: Add ipython display function to correctly print object

[mfisherlevine]

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes

[codecov]

Codecov Report

Merging #621 (da29a6e) into main (4f83673) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #621      +/-   ##
==========================================
+ Coverage   84.12%   84.14%   +0.01%     
==========================================
  Files         237      237              
  Lines       30300    30305       +5     
  Branches     5008     5008              
==========================================
+ Hits        25491    25499       +8     
+ Misses       3664     3661       -3     
  Partials     1145     1145              

Impacted Files	Coverage Δ
python/lsst/daf/butler/core/dimensions/_records.py	84.76% <100.00%> (+2.21%)	⬆️
tests/test_simpleButler.py	97.84% <100.00%> (+0.02%)	⬆️

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[timj]

I'm not a huge fan of special-purpose display methods but this does need a docstring and it also needs a test to make sure it doesn't crash when it runs.

The test can capture stdout or something (with _repr_html_ it's easier because that's a return value).

[TallJimbo]

Minor comment on the test code. Otherwise looks good to me.