Weapons Display

This is kinda minor, but I just added a weapon display grid thingy. The box borders change colors when the weapon is firing or reloading. I was thinking about creating GL_LINES based weapon outlines, but rendering the actual projectiles ended up working a lot better.

Eventually I will need to add functionality to change key bindings, or possibly even add and remove weaponry using this magicks.

I'm having difficulty making progress as I find myself less sure of what the most important thing to work on is. I'm trying to balance a feeling of completeness and a wish to put a cap on new features. There are so many things that could use minor improvements.