Drew's BufferedImage Pens Implemented

Can select the size of the pen for the Draw and Shape tool. By default
the size cannot be selected for a tool, Draw/Shape both override this in
their select methods.

Importing images now correctly resizes the drawing area (made 0
changes... don't ask me why it suddenly works... I didn't see any
changes in your most recent commit Zach that would have changed it
either. https://pbs.twimg.com/media/BCh-v51CAAA9HuT.jpg