code: public static <V> EntryStream<Integer, V> of(V[] array) {
          return of(Arrays.asList(array));
      }
docs: Returns an {@code EntryStream} object whose keys are indices of given
  array and the values are the corresponding array elements.
  
  @param <V> array element type
  @param array array to create the stream from
  @return a new {@code EntryStream}
  @since 0.2.3