Provide vscode extension

[trampster]

I'm using dotnet core on linux with vscode to create a high performance timing critical application and am trying to reduce / eliminate my heap allocations in critical sections of my code.

Would be awesome if vscode was supported.

[edespong]

I think this should be possible to do once dotnet/vscode-csharp#43 is all done.

[mjsabby]

I agree this should be possible. Let me know if anyone wants to take a swag at it.