Add tests for defaults and generated column values

[mkindahl]

This adds basic tests for generated columns and columns with default values for tables using the Hypercore TAM.

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.10%. Comparing base (59f50f2) to head (ee522aa). Report is 603 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #7441 +/- ## ========================================== + Coverage 80.06% 82.10% +2.04% ========================================== Files 190 230 +40 Lines 37181 43095 +5914 Branches 9450 10830 +1380 ========================================== + Hits 29770 35385 +5615 - Misses 2997 3396 +399 + Partials 4414 4314 -100 ```

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