Changelog:

Behavior changes:
Support common local / remote data operations / known failures (similar to the existing DateTime occurrences)

Structural changes:

• Make the Sample app multi-target. Add configuration settings (converters + conventions) for targets < net8 to test against net6, 7, 8 (too many combinations, where something works or does not);
• Clone dummy columns from the Orders -> OrderDate (populate with DateOnly / TimeOnly values), map in ORM classes, add into a grid;
• Skip some tests for new data types / columns
  • EFCore < 8 - requires (even more) cfg settings, requires significant refactoring first;
  • Xpo, NH - until new data types are supported.