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/CommonProxy.java

@@ -44,6 +44,8 @@ public class CommonProxy {
 
 	public void initialiseLayers(){}
 
+	public void initialiseAnimations(){}
+
 	public void registerKeyBindings(){}
 
 	public net.minecraft.client.model.ModelBiped getWizardArmourModel(){
@@ -266,6 +268,14 @@ public class CommonProxy {
 		return null;
 	}
 
+	/**
+	 * Returns true if the game is being viewed from the perspective of the given entity and is set to first-person
+	 * view. Always returns false on the server side.
+	 */
+	public boolean isFirstPerson(Entity entity){
+		return false;
+	}
+
 	/** Returns an unmodifiable set of the string keys for all of the loaded spell HUD skins. */
 	public Set<String> getSpellHUDSkins(){
 		return null;