Phystank Update

PhysTank is coming along nicely, resource cache, renderer and the game engine are in place, also work has began on the user-interface and game components. Next up physics (which I will use a 3rd party library for, like Box2D) and a bit further down the road sound. Since the game will be rendered entirely using lines I won't have to mess around for hours in photoshop, although some nice user-interface graphics would be nice.