Add elemental VFX when hitting enemies (2D only currently)

Zennysoft.Game.Ma/src/enemy/IEnemyModelView.cs

@@ -27,6 +27,8 @@ public interface IEnemyModelView : INode3D
 
   public void PlayDeathAnimation();
 
+  public void PlayElementalDamageAnimation(ElementType elementType);
+
   public double ViewerSize { get; }
 
   public AttackData AttackData { get; set; }