code: public static <T> Matcher<Iterable<? extends T>> containsInRelativeOrder(final Iterable<T> items) {
          return IsIterableContainingInRelativeOrder.containsInRelativeOrder(items);
      }
docs: Creates a matcher for {@linkplain Iterable}s that matches when a single pass over the examined
  {@linkplain Iterable} yields a series of items, that contains items logically equal to the corresponding item in
  the specified items, in the same relative order For example:<br />
  <p>
  <p>For example:
  <p>
  <pre>
  //Arrange
  Iterable<String> actual = Arrays.asList("a", "b", "c", "d");
  Iterable<String> expected = Arrays.asList("a", "c");
  
  //Assert
  assertThat(actual, containsInRelativeOrder(expected));
  </pre>
  
  @param items the items that must be contained within items provided by an examined {@linkplain Iterable} in the
  same relative order