Indicates whether Roslyn is included

[Forgind]

Fixes #22

I didn't see an obvious way to determine whether the C# compiler was installed for the dotnet sdk, and I didn't want to replicate all the logic from VSLocationHelper for a command prompt. Maybe right?

[rainersigwald]

I don't think this is the right approach. Is it possible to expose instance itself so consumers can do arbitrary operations on it, like check for their own packages?

[Forgind]

I could expose instance as a parameter as I have ContainsRoslynCompiler exposed here. Would you want the non-VS versions to return null for that?

[YuliiaKovalova]

Hi @rainersigwald and @Forgind,

Do we plan to work on this PR?
Can we close it?

[rainersigwald]

I think we need to have a design for #22 before taking any implementation and would favor closing this.

[Forgind]

I think this is low enough priority that it doesn't warrant a serious design discussion. I'd personally prefer to just take this roughly as-is over closing it, but closing it makes more sense than talking about it for too long.