Support C# 10 and C# 11 codebases#179

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danielgreen wants to merge 4 commits intoT4MVC:developfrom

danielgreen:support-csharp-10-and-11-codebases

Commits on Dec 17, 2022

Update to the latest Roslyn SDK to support running R4MVC over codebases written in C# 10 and C# 11.
danielgreen
committed
Remove unsupported frameworks
danielgreen
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Update appveyor image to VS 2022
danielgreen
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Upgrade cli app to .NET 7.
danielgreen
committed