Add player animation system!

- Hooks into ModelRenderer by wrapping it in an extended version that allows modification of angles after the model has set them
- Is compatible with pretty much everything, yay (even modded armour!)
- Adds property overrides to ItemWand so that gets animated too
- Adds a system for generating override models from a template at runtime so I don't have to duplicate all the wand models
- Tweaks particles and ray spells so they line up with the end of the newly-animated wand
- Fixes a long-standing bug where wand usage actions would stop immediately for all non-continuous spells

src/main/java/electroblob/wizardry/spell/SummonIronGolem.java

@@ -1,12 +1,12 @@
 package electroblob.wizardry.spell;
 
+import electroblob.wizardry.item.SpellActions;
 import electroblob.wizardry.util.ParticleBuilder;
 import electroblob.wizardry.util.ParticleBuilder.Type;
 import electroblob.wizardry.util.SpellModifiers;
 import electroblob.wizardry.util.WizardryUtilities;
 import net.minecraft.entity.monster.EntityIronGolem;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.EnumAction;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
@@ -14,7 +14,7 @@ import net.minecraft.world.World;
 public class SummonIronGolem extends Spell {
 
 	public SummonIronGolem(){
-		super("summon_iron_golem", EnumAction.BOW, false);
+		super("summon_iron_golem", SpellActions.SUMMON, false);
 		addProperties(SpellMinion.SUMMON_RADIUS);
 		soundValues(1, 1.1f, 0.2f);
 	}