SimpleDataHelperT Methods

NOTE: Use InsertItems(Int32, IListT, Boolean) for bulk inserts, as it's way faster

NOTE: Use RemoveItems(Int32, Int32, Boolean) for bulk removes, as it's way faster

NOTE: In case of resets, the preferred way is to clear the List yourself, add the models through it, and then call NotifyListChangedExternally(Boolean). This saves memory by avoiding creating an intermediary array/list