code: public static <T> Future<ReactiveSeq<T>> sequence(final Stream<? extends Future<T>> fts) {
          return sequence(ReactiveSeq.fromStream(fts));
      }
docs: Sequence operation that convert a Stream of Futures to a Future with a Stream
  
  <pre>
  {@code
  Future<Integer> just = Future.ofResult(10);
  Future<ReactiveSeq<Integer>> futures =Future.sequence(Stream.of(just,Future.ofResult(1)));
  Seq.of(10,1)
  
  }
  </pre>
  
  @param fts Strean of Futures to Sequence into a Future with a Stream
  @return Future with a Stream