saga_api, SG_File_Get_Path_Relative(): fix, fail-check
saga_api/map/map_dc: fix, enormous performance loss drawing polygons/lines through wxDC API (msw only?! starting with wxWidgets 3.3.3!)
saga_api/map, CSG_Map_Shapes::_Draw_Label(): fix, maximum point size, use preferred wxFont::SetFractionalPointSize() (not SetPointSize())
saga_gui, CWKSP_Shapes::_LUT_Import(): fix, attribute name might differ in letter cases
saga_api/map/map_dc: fix, enormous performance loss drawing polygons/lines through wxDC API (msw only?! starting with wxWidgets 3.3.3!)
saga_api/map/map_dc: fix, enormous performance loss drawing polygons/lines through wxDC API (msw only?! starting with wxWidgets 3.3.3!)
saga_api/map, CSG_Map_Shapes::_Draw_Label(): fix, maximum point size, use preferred wxFont::SetFractionalPointSize() (not SetPointSize())
saga_gui, CWKSP_Data_Item::Save(): fix, add file to recent files list