Use hooks

[Vitormdias]

In this branch I replaced the plug HOC implementation to use react hooks, I've used useState e useEffect and eliminated unnecessary code. I'd also removed the lifecycle object that we received, because since we use hooks now, whoever uses the plug can implement useEffect in his functional components instead of passing it to us, so the person using the plug HOC has more control of his implementation

[Vitormdias]

Solves issue #8

[filipeversehgi]

This way we would not support older versions of React.
Try to put the Hooks Plug Proposal inside a usePlug custom hook, and leave the HOC the way it was using Class Components.