Implemented a main window, with fps, current pitch and last pitch flags

The game now runs in fullscreen mode, and I've added labels showing current FPS, current pitch and last pitch (just the stuff from Hayden's InfoWindow). Running it with the cmd line arg true will display these labels, false will just result in a blank screen. Going to start working on getting the axes displayed on screen now. I would have done it before now, it's just it's been a while since I've done any GUI stuff in Java so those labels took friggin ages to get working :P
What do you guys think?