Spell HUD rewrite and retexturing:

- Replaces the old hardcoded drawing methods with a new json-based system with support for multiple inbuilt and resource pack-defined skins.
- Adds a config option for choosing the spell HUD skin, along with a custom config GUI screen allowing the user to select from a list of available skins with a preview of the currently selected skin.
- Replaces the HUD texture file with a spell_hud subfolder, containing all the necessary textures and json files for the 12 inbuilt skins.
- Adds a subtle sound effect and scroling animation when switching spells
- Reorganises the control event code into a single handler class and converts this class and the spell HUD class to static event handlers.
- Fixes the HUD position option which got broken in the previous spell HUD commit

src/main/java/electroblob/wizardry/Wizardry.java

@@ -120,6 +120,8 @@ public class Wizardry {
 	public void preInit(FMLPreInitializationEvent event){
 
 		logger = event.getModLog();
+		
+		proxy.registerResourceReloadListener();
 
 		settings.initConfig(event);
 
@@ -162,9 +164,7 @@ public class Wizardry {
 
 		// Event Handlers
 		GameRegistry.registerWorldGenerator(generator, 0);
-		MinecraftForge.EVENT_BUS.register(new WizardryKeyHandler());
 		MinecraftForge.EVENT_BUS.register(instance);
-		proxy.registerSpellHUD(); // This can't easily be converted to use the new @Mod.EventBusSubscriber system
 		NetworkRegistry.INSTANCE.registerGuiHandler(this, new WizardryGuiHandler());
 		WizardryPacketHandler.initPackets();