feat: add PostgresEntity/ReadonlyPostgresEntity classes that expose knexLoader methods

[wschurman]

Why

This is part 2 of the refactor described in #441.

It adds subclasses of Entity and ReadonlyEntity that supply the static knexLoader methods to keep the ergonomics of the extension but without the monkey-patching.

How

Add subclasses, add test.

Test Plan

Run test.

[wschurman]

• fix: update integration test to use BlahEntity.knexLoader syntax #444 : 2 dependent PRs (#446 , #448 )
• fix: revert change to codemod now that Entity.knexLoader is supported again via subclass #443
• feat: add PostgresEntity/ReadonlyPostgresEntity classes that expose knexLoader methods #442 👈 (View in Graphite)
• fix: refactor install method to instead be free functions #441
• fix: Add default for TSelectedFields for application-instantiated types #438
• fix: pass in augmentable classes to installation #437
• feat: Add pagination max page size configuration #436
• feat: Add ilike and trigram similarity search to pagination #431
• main

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (51d632d) to head (31ca8c0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##              main      #442    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          107       109     +2     
  Lines        15713     15944   +231     
  Branches       860       862     +2     
==========================================
+ Hits         15713     15944   +231     

Flag	Coverage Δ
integration	22.71% <0.00%> (-0.34%)	⬇️
unittest	95.09% <100.00%> (+0.07%)	⬆️

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[wschurman]

Merge activity

• Feb 16, 8:58 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Feb 16, 9:15 PM UTC: Graphite rebased this pull request as part of a merge.
• Feb 16, 9:18 PM UTC: @wschurman merged this pull request with Graphite.