Add CreateCell to ICell interface

src/UI/Widgets/InfiniteScroll/IListDataSource.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using UnityEngine;
 
 namespace UnityExplorer.UI.Widgets.InfiniteScroll
 {
@@ -10,5 +11,7 @@ namespace UnityExplorer.UI.Widgets.InfiniteScroll
         int ItemCount { get; }
 
         void SetCell(ICell cell, int index);
+
+        ICell CreateCell(RectTransform cellTransform);
     }
 }