Codec Plugins, and image reading!

So I've managed to finish writing the core of the codec plugins. As a result, I've been able to code an image-reading plugin using Qt's built-in image library. There are still some stability issues (i.e. crashing), but now files can be opened with the appropriate codec thanks to codec plugin auto-detection.

Here's a snapshot of a double-click on an imported resource, in this case, a .jpeg file (A nice Ultraman painting by Bruce White).