Add prototype for GUI.

-Directory is renamed CircuitVision instead of CircuitSolver

-Added CircuitVisionRunner, which uses the Processing library (PApplet)
to make two graphics windows. One is for drawing the circuit, the other
for displaying the animated 3D model.

-Added Dot class. These are the terminals in the graphics window.

-Added buttons to the circuit window using the ControlP5 library.

-TwoWindow is a class found on the web and used as a template for building
a two window Processing program from within Java code. Source for this code
can be found here:
http://processing.org/discourse/beta/num_1243505183.html