Two Dimensional Array Object.

Implement the two dimensional array object that we examined in class on 21st
January. You can use code that I wrote on the board as much or as little as
you want. Use constructors, methods, public, protected appropriately.

Make sure it works on rabbit, even if you develop under visual studio.

Add a function that takes two 2d arrays as parameters, adds them together
and returns the result as a new 2d array.

To do this, you will need to add methods that allow ordinary functions
to find out the dimensions of a 2d array.