Add metadata files when creating datasets

[delucchi-cmu]

Change Description

Related to astronomy-commons/hats#147

• Removes the partition_info.csv writing from catalog creation
• Writes out _metadata files for all created datasets
• Expands some tests to try loading the dataset after creation through import
• Suppresses the progress bar output in more unit tests

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f50adee) 99.76% compared to head (aa9dca4) 99.76%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #189   +/-   ##
=======================================
  Coverage   99.76%   99.76%           
=======================================
  Files          27       27           
  Lines        1257     1273   +16     
=======================================
+ Hits         1254     1270   +16     
  Misses          3        3           

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