code: public static <K, V> EntryStream<K, V> of(Spliterator<? extends Entry<K, V>> spliterator) {
          return of(StreamSupport.stream(spliterator, false));
      }
docs: Returns a sequential {@link EntryStream} created from given
  {@link Spliterator}.
  
  @param <K> the type of stream keys
  @param <V> the type of stream values
  @param spliterator a spliterator to create the stream from.
  @return the new stream
  @since 0.3.4