DataTier.Net 4.1.0

DataTier.Net now targets .NET Framework, .NET 5, .NET 6 or .NET 7 (default).

All new development and testing is done on .NET 7.

New projects for .NET Framework are currently broken, but .NET Framework is still supported for backwards compatibility (and one of my client's projects is stuck on .NET Framework).

Making a video as we speak. I know the documentation is out of date. I will update the docs for .NET 7 as soon as I can.