Cont. More query tests

[Du-z]

make use of a xUnit Collection Fixture to stop and start the test database.

it now starts the DB in memory mode as we do not want to keep the data after the tests have completed.

Also added some more test, some are failing

[ProphetLamb]

@all-contributors add @Du-z for bug ideas

[allcontributors[bot]]

@ProphetLamb

I've put up a pull request to add @Du-z! :tada:

[Du-z]

@ProphetLamb

Left on my list for tests are:

• Multiple result set handing
• Converters testing (Working on this now)
• Add a few more types to the roundtrip test
  • DateTimeOffset
  • DateOnly
  • TimeOnly
  • Arrays
  • Objects
• DB Error Responses