Add pipeK for monads

Ramda has Kleisli composition via composeK and pipeK. We probably only need one of those.

It is worth considering instead a specification for Categories as suggested in https://github.com/fantasyland/fantasy-land/issues/208 and implementing a Kleisli type that exposes its own compose.

This would mean pipe would be sufficient if it were implemented in terms of compose.

[Avaq]

S.pipe(S.map(S.chain, [f, g, h]))

const pipeK = S.compose(S.pipe, S.map(S.chain))

I’m happy defining it myself for my sporadic use-cases. 🤷‍♂️

[davidchambers]

Since pipeK would exist only for convenience, we should compare usage examples. Let’s use this as the starting point:

S.pipe([S.chain(f), S.chain(g), S.chain(h)])

With pipeK:

S.pipeK([f, g, h])

With Kleisli:

S.pipe([S.Kleisli(f), S.Kleisli(g), S.Kleisli(h)])