Proposal for an IO interpreter

[VledicFranco]

After composing the API, we need to convert the resulting data structure into executable IOs. Propose a simple interpreter (a function from Behaviour[A] to IO[A]) to test our examples and see them running

[kolov]

What about Sink, as defined in Chapter 8 of the paper? Something about Events is implemented, extend it for Behaviour.

[kolov]

Proposal: implement Sink, as defined in chapter 8 in the book - see https://github.com/scalaz/scalaz-reactive/blob/d1cc9027658527e4436c665e14d489cbf9c21f79/core/src/main/scala/scalaz/reactive/Sink.scala

Given that at the moment our Future is an IO, Sink naturally produces another IO[Void,()].