Set up a SIFT method and massively upgraded the debug view to look at the image processing outputs in color.
TODO: the template matching used for unrotated ship icons and asteroids does not work on missiles.
The data returned by the gamemodel function is overly verbose and not interpreted well yet. I'd like to return a (pt, wh, label) tuple like the find_asteroids function does. This would make it compatible with the existing display_results function.
