attempt at loading squiggle shape with processing
card-image generator added

Added Asymptote code that can generate set card images from the mod-3 parameters of a set-card.
Added java class to create image from card

Addedd java class that extracts the attributes of a Card data-type, and creates and compiles an asy script to generate that card's image
Updated makefile to clean .eps files
Added Card prop-int methods, updated converter

Updated converter to call the direct card methods for obtaining the int corresponding to a specific property
Modified setcards.asy for fixed dimensions

modified code in setcards.asy so that card images have uniform dimensions
Modified image creator to generate png

Modified setcards.asy and CardConverter to correctly render png files instead of eps files
Modified Makefile to clean pngs and jpgs as well
Removed reference image (no longer needed)
Merge branch 'cards' into gui