undeprecate select columns and select rows

[samukweku]

PR Description

Please describe the changes proposed in the pull request:

• undeprecate select_columns and select_rows
• deprecate filter_column_isin
• update register_groupby_method to register_dataframe_groupby_method

This PR resolves #1514.

Please tag maintainers to review.

• @ericmjl

[ericmjl]

🚀 Deployed on https://deploy-preview-1532--pyjanitor.netlify.app

[ericmjl]

Just a quick question to address.

[ericmjl]

@samukweku are we sure this is to be deleted?

[samukweku]

@ericmjl yes, this has been replaced with @pf.register_dataframe_groupby_method -> @pf.register_dataframe_groupby_method

[ericmjl]

Apologies, @samukweku I probably should have been clearer in my phrasing -- I noticed that the whole ungroup function was deleted, is this intentional?

[samukweku]

thanks for the observation @ericmjl ... I have updated the code to show that ungroup is deprecated.

[ericmjl]

Approving!

[ericmjl]

@samukweku please do the honors!

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.78%. Comparing base (e1b64c1) to head (3461a99).
⚠️ Report is 73 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1532      +/-   ##
==========================================
+ Coverage   83.49%   87.78%   +4.29%     
==========================================
  Files          88       95       +7     
  Lines        6469     6794     +325     
==========================================
+ Hits         5401     5964     +563     
+ Misses       1068      830     -238     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.