code: public static <T> CompletableFuture<ReactiveSeq<T>> sequence(final Iterable<? extends CompletableFuture<T>> fts) {
          return sequence(ReactiveSeq.fromIterable(fts));
      }
docs: Asynchronous sequence operation that convert a Collection of Futures to a Future with a List
  
  <pre>
  {@code
  CompletableFuture<Seq<Integer>> futures =CompletableFuture.sequence(Seq.of(
  CompletableFuture.completedFuture(10),
  CompletableFuture.completedFuture(1)));
  Seq.of(10,1)
  
  }
  </pre>
  
  
  @param fts Collection of Futures to Sequence into a Future with a List
  @return Future with a List