Din's Legacy patch 0.905

This patch adds more textures & models for mutations and fixes a few smaller issues. 0.905 change list:

• added textures for Dragon mutation

• added textures for Lycanthrope mutation

• added model/textures for Stalker Feet mutation

• fixed Claws mutation drawing temporary model

• made light fov for shadow mapping in dungeons extend a little more

• fixed normal maps on 4 of 5 naga/naga priest variants

• fixed some text in NPCs chatting makes them happier tip

• fixed Zombie Scorpion levels

• added semi-permanent and slow mutation to options key on select character screen

• fixed getting orc guard items

• fixed test_stressMonsters spawning monsters that have no init or spawn chance