feat(editor): switch templates by their geometry and a template editor: the diverging track is a chain of straights, arcs and transition curves from the start of the switch, with the pre-blade stretch and the angle of the blade at its tip; own templates are kept in eu07_switch_templates.txt and listed in the switch tool; double switches Rpd and Rpj are laid as two switches joined by the main track and handled as one set by sliding, replacing, flipping, the gizmo and deleting, with drives for both switches; self-test switchtemplates

application/editormode.cpp

@@ -1483,6 +1483,7 @@ bool editor_mode::update()
     render_shortcuts_window();
     render_first_steps();
     render_orthophoto_window();
+    render_switch_designer();
     render_environment_window();
     draw_selection_overlay();
     render_context_menu();