Add: OnConvert

Author: nuskey8

src/Arch.Unity/Assets/Arch.Unity/Runtime/Conversion/EntityConversion.cs

@@ -52,6 +52,8 @@ static void Init()
         }
 #endif
 
+        public static event Action<EntityReference, World> OnConvert;
+
         public static EntityReference Convert(GameObject gameObject)
         {
             return Convert(gameObject, DefaultWorld, EntityConversionOptions.Default);
@@ -115,6 +117,8 @@ public static EntityReference Convert(GameObject gameObject, World world, Entity
                 syncWithEntity.UseDisabledComponent = options.UseDisabledComponent;
             }
 
+            OnConvert?.Invoke(entityReference, world);
+
             return entityReference;
         }