code: public static final <T> Stream<T> append(final Stream<T> stream, final T... values) {
          return appendStream(stream, Stream.of(values));
      }
docs: Append values to the take of this Stream
  <pre>
  {@code
  List<String> result = 	of(1,2,3).append(100,200,300)
  .map(it ->it+"!!")
  .collect(CyclopsCollectors.toList());
  
  assertThat(result,equalTo(Arrays.asList("1!!","2!!","3!!","100!!","200!!","300!!")));
  }
  </pre>
  @param values to append
  @return Stream with appended values