LCL: TCustomListView: Implemented OwnerDraw & OnDrawItem for delphi compatibility. Widgetsets are responsible to trigger OnDrawItem via CN_DRAWITEM message.Part of issue #25149


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@43115 4005530d-fff6-0310-9dd1-cebe43e6787f
Qt: implemented TListView OwnerDraw and OnDrawItem event.Part of issue #25149


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@43116 4005530d-fff6-0310-9dd1-cebe43e6787f