Examples to support data registry entries

[d-chambers]

Description

This PR allows the get_example_spool and get_example_patch functions to support using the name of a data entry directly. E.g.,

import dascore as dc

patch = dc.get_example_patch("DASDMSShot00_20230328155653619.das") 

This PR also:

• Adds the example data from the das4whales project to the data registry .
• fixes a potential bug in the ProdML implementation where the attribute dims and coordinate manager dims could disagree.

Checklist

I have (if applicable):

• referenced the GitHub issue this PR closes.
• documented the new feature with docstrings or appropriate doc page.
• included a test. See testing guidelines.
• your name has been added to the contributors page (docs/contributors.md).
• added the "ready_for_review" tag once the PR is ready to be reviewed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.53%. Comparing base (8968e7f) to head (6be3fc0).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #348   +/-   ##
=======================================
  Coverage   99.53%   99.53%           
=======================================
  Files          91       91           
  Lines        7245     7250    +5     
=======================================
+ Hits         7211     7216    +5     
  Misses         34       34           

Flag	Coverage Δ
unittests	99.53% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.