code: static LongTupleIncrementor colexicographicalIncrementor()
      {
          return (t, min, max) -> 
              LongTuples.incrementColexicographically(t, min, max, t);
      }
docs: Returns an {@link LongTupleIncrementor} that increments the tuples
  in colexicographical order
  
  @return The {@link LongTupleIncrementor}.