Creates an adapter Tornado -> React\LoopInterface

[b-viguier]

See React\LoopInterface. Will improve interoperability possibilities. May require some new features, like promise cancellation, or signal handling.

[kelunik]

Promise cancellation isn't required for a loop adapter, as promises and the event loop are entirely separated in ReactPHP.

[b-viguier]

@kelunik You're absolutely right 😄 By design, Tornado doesn't separate these 2 concepts, maybe it confused me a bit while writing this… Or maybe it was to manager cancelTimer in a unified way in Tornado 🤔 Anyway, we need to cancellable promises for an edge case in promiseRace: we want to keep the first settled promise and cancel others… It's in the TODO list 😉