Feature request: editable `Comment` property on `ProjectElement` in `Microsoft.Build.Construction`

Hello,

My team is looking into using the `Microsoft.Build` NuGet package (mostly the `Microsoft.Build.Construction` namespace) to potentially replace one of our internal libraries.

I see in https://github.com/dotnet/msbuild/blob/main/src/Build/Construction/ProjectRootElement.cs#L40 that "Comments and whitespace cannot be edited through this model at present." I suppose this is true for its `abstract` ancestor `ProjectElement`. It would be great if I can programmatically add comments to certain elements in project files.
1. Is your team actively working on supporting comments? If not, is there a timeline for this feature?
2. Is the feature open for community contributions?

Thanks in advance!