Adding f# 4.1 Error handling via Result

[wallymathieu]

• Moved main Choice<,> error handling to Compatibility modules
• Copy and modify of Choice<,> error handling but with Result<,>

[wallymathieu]

Thoughts @haf ?

[haf]

I don't think we need to break the API just to support Result. But I like supporting result.

[wallymathieu]

Perhaps creating a YoloResults.fs file? So that you can choose what kind of behavior you want?

[haf]

YoLo moves with f#, so if F# supports Result we can add it.

[wallymathieu]

So does this look more OK? Basically only adding the Result things and keeping everything else as is.

[haf]

Thanks!

[wallymathieu]

👍