public acm.graphics.GCompound fan(double x,
Provides a way to display the contents of this card collection as a GCompound.
The cards are "fanned out" horizontally so that one can see all the various card values,
but not the entirety of each card.
x - x-coordinate of the top-left corner of the fan
y - y-coordinate of the top-left corner of the fan
spacing - the horizontal distance specifying how much of each cards left side should be seen