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/CommonProxy.java

@@ -46,13 +46,14 @@ public class CommonProxy {
 	public void registerKeyBindings(){
 	}
 
-	public void registerSpellHUD(){}
 
 	public net.minecraft.client.model.ModelBiped getWizardArmourModel(){
 		return null;
 	}
 
 	public void initGuiBits(){}
+	
+	public void registerResourceReloadListener(){}
 
 	// SECTION Particles
 	// ===============================================================================================================
@@ -126,6 +127,8 @@ public class CommonProxy {
 
 	public void setToNumberSliderEntry(Property property){
 	}
+	
+	public void setToHUDChooserEntry(Property property){}
 	// public void setToEntityNameEntry(Property property){}
 
 	/**
@@ -148,4 +151,9 @@ public class CommonProxy {
 		return null;
 	}
 
+	/** Returns an unmodifiable set of the string keys for all of the loaded spell HUD skins. */
+	public Set<String> getSpellHUDSkins(){
+		return null;
+	}
+
 }