Comment that TCustomComboEdit could be replaced by VCL TCustomButtonedEdit

Source commit: 74383029600422b782d6993bb8cf32b55b56747a

source/packages/my/ComboEdit.pas

@@ -25,6 +25,7 @@ type
 
   { TCustomComboEdit }
 
+  // Could be replaced by TCustomButtonedEdit
   TCustomComboEdit = class(TCustomEdit)
   private
     FButton: TButton;