Feature Request: MSBuild XSD Schema Addition for

I am using the XML validation in VSCode to provide intellisense for my .csproj files. It is possible to extend the typical msbuild schema with additional options per this example:
https://github.com/dotnet/msbuild/blob/main/src/MSBuild/Microsoft.Build.xsd

It would be nice to be able to reference a generated XSD that has all the possible Azure functions options such as `AzureFunctionsVersion` with the documented help of what each setting does.

Start by reading the referenced src/MSBuild/Microsoft.Build.xsd and reviewing how Azure Functions options such as AzureFunctionsVersion are represented in .csproj files. Identify the repository entry point for generating or publishing schema information; no specific local file or test is named in the issue. Done means a generated XSD can provide VSCode XML validation and IntelliSense for the documented Azure Functions options.

Written by the indexing model from the issue text.