Adds support for Visual Studio 2022 and .NET 6.
Features
- Validated Microsoft .NET 6 compatibility.
- Added Microsoft .NET 5 variations of the product assemblies to the NuGet feeds.
- Added Microsoft .NET Core 3.1 and .NET 5+ designer support for Microsoft Visual Studio 2022 and updated the 'About...' designer action to open product-specific online documentation.
