Added some basic text to readme file.
	new file:   gl_renderer.hpp
	new file:   gldrawview.h
	new file:   include/controller.h
	modified:   include/gcode.hpp
	new file:   include/gl_renderer.hpp
	modified:   src/gcode.cpp
	modified:   tinyCNC/tinyCNC/AppDelegate.h
	modified:   tinyCNC/tinyCNC/AppDelegate.mm
	modified:   tinyCNC/tinyCNC/Base.lproj/MainMenu.xib