Make UseWithArgumentNamesAttribute publicly available

[FreeApophis]

Probably as it's own project?

We have a request to be able to use the attribute (and Generator therfore) in their own projects.

[bash]

I think we should ship the attributes as a source code package. That way consumers don't get a runtime dependency on the attributes, which would be a lot of pain when we decide to do breaking changes.

Alternatively, the Funcky.Analyzers package could contain the attributes using some property to opt into specific attributes: Something like <FunckyCodeAnalysisAttributes>UseWithArgumentNames</FunckyCodeAnalysisAttributes>. That way we keep the analyzers and attributes together.

We also need to make sure that the analyzer does not crash in case of an unexpected attribute data (in case we decide to make breaking changes to the attribute).

[bash]

We might not need to make this attribute public. If we're lucky the BCL might add it: https://github.com/dotnet/runtime/issues/51451.

There's also an F# RFC: https://github.com/fsharp/fslang-design/blob/main/drafts/FS-1095-requirenamedargumentattribute.md
They however call it RequireNamedArgument, maybe we want to match that naming before making our analyzer public?