Fixed highlighting of the searched option

+ Create controls only on the shown and active tab
+ Line class : deleted unused sizer
+ In GUI_Utils added TaskTimer class for the print a time of some task duration
+ BedShapeDialog:: activated options_groups
+ commented some unused code

src/slic3r/GUI/OptionsGroup.hpp

@@ -49,7 +49,6 @@ public:
     wxString	label_tooltip {wxString("")};
     size_t		full_width {0}; 
 	wxStaticText**	full_Label {nullptr};
-    wxSizer*	sizer {nullptr};
     widget_t	widget {nullptr};
     std::function<wxWindow*(wxWindow*)>	near_label_widget{ nullptr };