feat(editor): a less crowded track editor and one choice of what the switch tool places

- the switch tool asks what to place: a switch, a slip switch, a crossing or a connection of tracks (crossover, double,
  scissors, ladder), with the templates and the options of that kind only and one line of how to place it with the mouse;
  the bar of hints says the same, the wheel keys of a connection included; panel in its own editormodeswitchtool.cpp
- templates are listed by their names, the lengths a and b and the rest of the label in the tooltip
- the panel of a selected switch shows its length, its type and its drive; the name, number, rail, kilometre and angle are
  under Details
- one toolbar: the tools are no longer drawn a second time down the edge of the view; the track tools show select, lay,
  plan, switch and parallel, the others behind More, which starts closed again (setting track_tools_all)
- the infrastructure tool has no button nor key
- the gizmo options start closed, the node bank isn't drawn in the track mode
- no drive models: said in plain words
- self-test switchkind

editor/editorTrack.hpp

@@ -424,6 +424,9 @@ class editor_track
 		int design{-1}; // in the list of the designs the template was built from
 		double middle{0.0}; // a double slip with the blades outside of the diamond: the radius in the middle of its slip curves, below 0 a straight there
 		bool twofold() const { return stagger > 0.0; }
+		// the name of the template for a list: the label without the lengths a and b and the hint in brackets, which
+		// the full label gives
+		std::string title() const;
 	};
 	// the diverging curve of a slip turning by Angle: arcs of Radius at both ends, each Ends long, and the arc of Middle,
 	// Between long, between them; a straight when Middle is 0. With blades cutting into the stock rails the curve starts and ends