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/Whirlwind.java

@@ -2,13 +2,13 @@ package electroblob.wizardry.spell;
 
 import electroblob.wizardry.Wizardry;
 import electroblob.wizardry.item.ItemArtefact;
+import electroblob.wizardry.item.SpellActions;
 import electroblob.wizardry.registry.WizardryItems;
 import electroblob.wizardry.util.SpellModifiers;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.item.EnumAction;
 import net.minecraft.network.play.server.SPacketEntityVelocity;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.EnumParticleTypes;
@@ -22,7 +22,7 @@ public class Whirlwind extends SpellRay {
 	public static final String REPULSION_VELOCITY = "repulsion_velocity";
 
 	public Whirlwind(){
-		super("whirlwind", false, EnumAction.NONE);
+		super("whirlwind", false, SpellActions.POINT);
 		this.soundValues(0.8f, 0.7f, 0.2f);
 		addProperties(REPULSION_VELOCITY);
 	}