Explore ways to integrate Flightready with Monix

[mr-calvert]

The obvious integration is to support Monix Task as F[_], but we do that already via cats.effect.Sync.

Monix is great though, and I'm only marginally aware of all the good use cases. So this ticket covers digging through the docs and examples and figuring out ways a monix-integration project could reduce friction and improve ergonomics in writing good stuff by composing Flightready algebras and Monix.