Rugs come in various sizes. In fact, we can find a rug with any integer width
and length, except that no rugs have a distinct width and length that are both even integers. For example, we can find a 4x4 rug, but not a 2x4 rug. We want to know how many different choices we have for a
given area.
Create a class RugSizes the contains a method rugCount that is given the desired
area and returns the number of different ways in which we can choose a rug size that
will cover that exact area.
Do not count the same size twice  a 6 x 9 rug and a 9 x 6 rug should be
counted as one choice.
