feat(compat): add functions to compat layer

[kimpuro]

I added functions in compat layer.

Resolves: #1036

Most of the code is identical to lodash.
The test code is also the same, with some additional code added for test coverage.

These are the benchmark results.

If there is anything missing, please let me know!
Thank you.

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Name	Status	Preview	Comments	Updated (UTC)
es-toolkit	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 30, 2025 7:54am

[dayongkr]

It would be better to use keys from the compat package instead of Object.keys, and minor documentation updates are needed.

Since these are very minor issues, I'll modify them directly after merging.

Thank you for your contribution!!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.36%. Comparing base (b0b2d08) to head (50db129).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1056   +/-   ##
=======================================
  Coverage   99.36%   99.36%           
=======================================
  Files         392      393    +1     
  Lines        3439     3443    +4     
  Branches     1024     1025    +1     
=======================================
+ Hits         3417     3421    +4     
  Misses         22       22           

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