Support building with Visual Studio 2022

[LeonarddeR]

Is your feature request related to a problem? Please describe.

Visual Studio 2022 is to be released next week. NVDA builds with Visual Studio 2019.

Describe the solution you'd like

Support building with Visual Studio 2022. We can decide to support 2019 and up, but as soon as appveyor supports 2022, it makes sense to drop 2019 support altogether.

Additional context

Blocked by a new SCons release. Visual Studio 2022 support is in master but is awaiting a new release.

[seanbudd]

AppVeyor now supports this: https://www.appveyor.com/blog/2021/11/10/visual-studio-2022-image/

[LeonarddeR]

For SCons, they said today or tomorrow, but that was the day before yesterday.

[LeonarddeR]

This was reverted by #13387

[LeonarddeR]

The fact that the uia library doesn't build on VS2022 is definitely an issue in our build environment. Running msbuild from the vs2022 developer command prompt works just fine.