["Request"] Missing EitherNes typealias

[nesk]

Arrow already has an EitherNel typealias:

typealias EitherNel<E, A> = Either<NonEmptyList<E>, A>

What about EitherNes?

typealias EitherNes<E, A> = Either<NonEmptySet<E>, A>

I suppose it was not already present because I see no one else using the NES acronyme for Non-Empty Set. 🤔

[serras]

@nomisRev @franciscodr @raulraja @kyay10 thoughts on this? I don't think we should do this, since we don't really use Either<NonEmptySet<E>, A> anywhere in our API...