Send wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED for generic version too.

Send this event when the column used for sorting changed in the generic
implementation of wxDataViewCtrl too.

Closes #13005.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68322 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/datavgen.cpp

@@ -214,6 +214,8 @@ private:
             model->Resort();
 
         owner->OnColumnChange(idx);
+
+        SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
     }
 
     void OnRClick(wxHeaderCtrlEvent& event)