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/Forcefield.java

@@ -1,16 +1,16 @@
 package electroblob.wizardry.spell;
 
 import electroblob.wizardry.entity.construct.EntityForcefield;
+import electroblob.wizardry.item.SpellActions;
 import electroblob.wizardry.registry.WizardryItems;
 import electroblob.wizardry.util.SpellModifiers;
 import net.minecraft.entity.EntityLivingBase;
-import net.minecraft.item.EnumAction;
 import net.minecraft.util.EnumFacing;
 
 public class Forcefield extends SpellConstruct<EntityForcefield> {
 
 	public Forcefield(){
-		super("forcefield", EnumAction.BOW, EntityForcefield::new, false);
+		super("forcefield", SpellActions.THRUST, EntityForcefield::new, false);
 		addProperties(Spell.EFFECT_RADIUS);
 	}