Adding column_date_formats config option

[dougharris]

Description

Allows per-column formatting for date, time, datetime like columns.

Add a column_date_formats section to your config file with separate lines for each column that you'd like to specify a format using name=format. Use standard Python strftime formatting strings.

More details in #1402

Checklist

• I've added this contribution to the changelog.rst.
• I've added my name to the AUTHORS file (or it's already there).

• I installed pre-commit hooks (pip install pre-commit && pre-commit install), and ran black on my code.
• Please squash merge this pull request (uncheck if you'd like us to merge as multiple commits)

[j-bennet]

@dougharris This PR will need conflicts resolved.

[dougharris]

Conflict resolved

[dougharris]

builds are failing because this PR depends on this PR in cli_helpers

[j-bennet]

@dougharris cli_helpers 2.4.0 is released. You'll need to bump the req in pgcli.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.64%. Comparing base (7f05cde) to head (7c426e7).
Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1486      +/-   ##
==========================================
- Coverage   80.13%   71.64%   -8.50%     
==========================================
  Files          25       25              
  Lines        3126     3170      +44     
==========================================
- Hits         2505     2271     -234     
- Misses        621      899     +278     

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[dougharris]

@j-bennet Updated and rebased on latest main

[j-bennet]

Nice. Merging!