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.cpp

@@ -34,6 +34,7 @@ http:
 #include <map>
 #include <numeric>
 #include <functional>
+#include <cstdlib>
 #include <sstream>
 #include <tuple>
 #include <unordered_set>
@@ -3417,3 +3418,32 @@ void editor_track::rebuild_geometry(TTrack &Track)
 		if (crossing != &Track && false == crossing->m_editorremoved)
 			rebuild(*crossing);
 }
+
+std::string editor_track::switch_template::title() const
+{
+	std::istringstream words(label);
+	std::vector<std::string> kept;
+	std::vector<std::string> all;
+	for (std::string word; words >> word;)
+		all.push_back(word);
+	for (std::size_t i = 0; i < all.size(); ++i)
+	{
+		if (all[i].front() == '(')
+			break;
+		auto const number = [](std::string const &Word) {
+			char *end{nullptr};
+			std::strtod(Word.c_str(), &end);
+			return end != Word.c_str() && *end == '\0';
+		};
+		if ((all[i] == "a" || all[i] == "b") && i + 1 < all.size() && number(all[i + 1]))
+		{
+			++i;
+			continue;
+		}
+		kept.push_back(all[i]);
+	}
+	std::string result;
+	for (auto const &word : kept)
+		result += (result.empty() ? "" : " ") + word;
+	return result.empty() ? label : result;
+}