Add Sink.none operator

[He-Pin]

Motivation:
When took a look at the current PR in Kotlin Flow, I think we should have this operator too.
Sink#none operator will just works as the Java's Stream#none.

refs: Kotlin/kotlinx.coroutines#4212

  def none[T](p: T => Boolean): Sink[T, Future[Boolean]] =
    Flow[T].foldWhile(true)(util.ConstantFun.scalaIdentityFunction)(_ && !p(_))
      .toMat(Sink.head)(Keep.right)
      .named("noneSink")

[beyondyuefei]

cool~