Optional tolerance feature to isin per issue #5587

[shazelquist]

• [x] Closes #5587
• [x] Tests added
• [x] Passes pre-commit run --all-files
• [x] User visible changes (including notable bug fixes) are documented in whats-new.rst
• ~~New functions/methods are listed in api.rst~~ doesn't appear to be necessary

This implementation is similar to suggested vectorized solution 1, but acts more according to the issue specifications.

I'm pretty this pull fails checks 4 and 5, but they may not be relevant to expanding functions from the apply_ufunc dispatcher? I will write an update if this is the case or any other changes are required.

[github-actions[bot]]

Unit Test Results

         6 files           6 suites   47m 40s :stopwatch: 16 267 tests 14 537 :heavy_check_mark: 1 730 :zzz: 0 :x: 90 798 runs  82 619 :heavy_check_mark: 8 179 :zzz: 0 :x:

Results for commit b2e32aaa.

:recycle: This comment has been updated with latest results.

[pep8speaks]

Hello @shazelquist! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers:

Comment last updated at 2021-10-23 00:24:37 UTC