Improved the culling result of HizCulling;

Added custom inspector for VolumeObject;
Change the name of AoVolume to VolumeObject;

Runtime/Models/VolumeEntity.cs

@@ -9,9 +9,9 @@ namespace Misaki.AoVolume
 
         public static readonly VolumeEntity Invalid = new(_INVALID_INDEX);
 
-        public VolumeEntity(int index)
+        public VolumeEntity(int entityIndex)
         {
-            this.entityIndex = index;
+            this.entityIndex = entityIndex;
         }
     }