Spider, GUI, Weapons

Added Spider with AI, textured and animated... Health GUI that updates
automatically... and I altered the weapons to give them individual
scripts; they each vary in speed and damage now, and strike with random
speeds as well... enjoy fighting the spider :)

just need to trigger up the story now, and set up the rocks and the
firesword as special pickup items (if i have time i will also make the
fire sword spit fire)