Join info from parquet metadata

[delucchi-cmu]

Change Description

Addresses two points in issue #147:

• Load partition info from _metadata file by default (for association catalog)
• Don't require partition_info.csv file for catalog to be loaded from disk (for association catalog)

[github-actions]

Before [5edcb74]	After [9e8b1c1]	Ratio	Benchmark (Parameter)
94.5±0.5ms	97.0±1ms	1.03	benchmarks.time_test_cone_filter_multiple_order
650±10ms	645±4ms	0.99	benchmarks.Suite.time_pixel_tree_creation
117±0.4ms	116±1ms	0.99	benchmarks.time_test_alignment_even_sky

Click here to view all benchmarks.

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (5edcb74) 100.00% compared to head (e667a24) 99.69%.

Files	Patch %	Lines
...catalog/association_catalog/association_catalog.py	75.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #171      +/-   ##
===========================================
- Coverage   100.00%   99.69%   -0.31%     
===========================================
  Files           49       49              
  Lines         1631     1650      +19     
===========================================
+ Hits          1631     1645      +14     
- Misses           0        5       +5     

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[delucchi-cmu]

This PR results in a drop in coverage, but the lines that aren't covered are ones that will be removed once this issue's migration is complete. I'm fine with leaving them uncovered, if My Gracious Reviewer is also ok with that.

[camposandro]

The changes look good, @delucchi-cmu! I just left a couple of comments regarding the docstrings.