feat!: Add check_names parameter to Series.equals and default to False

[stinodego]

Closes #13231

Changes

• Add a check_names parameter to Series.equals on the Python side. This parameter defaults to False - which is a breaking change for Python users.
• On the Rust side, Series.equals no longer checks the data types by default
• On the Rust side, Series.equals_missing and equals no longer check names by default.

Example

Before:

>>> s1 = pl.Series("foo", [1, 2, 3])
>>> s2 = pl.Series("bar", [1, 2, 3])
>>> s1.equals(s2)
False

After:

>>> s1.equals(s2)
True
>>> s1.equals(s2, check_names=True)
False

[codecov]

Codecov Report

Attention: Patch coverage is 95.23810% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 81.51%. Comparing base (d7b4f72) to head (2ca5a91).
Report is 1 commits behind head on main.

Files	Patch %	Lines
crates/polars-core/src/testing.rs	90.90%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #16610   +/-   ##
=======================================
  Coverage   81.51%   81.51%           
=======================================
  Files        1414     1414           
  Lines      185906   185914    +8     
  Branches     3027     3027           
=======================================
+ Hits       151535   151549   +14     
+ Misses      33840    33834    -6     
  Partials      531      531           

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[codspeed-hq]

CodSpeed Performance Report

Merging #16610 will improve performances by 15.15%

_{Comparing breaking-equals-check-names (2ca5a91) with main (bfcc1ee)}

Summary

⚡ 1 improvements
✅ 36 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	breaking-equals-check-names	Change
⚡	test_groupby_h2oai_q1	2.3 ms	2 ms	+15.15%