New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/routing/ruler_router.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "routing/router.hpp"
+#include <string>
+
+namespace routing
+{
+
+class RulerRouter : public IRouter
+{
+  std::string GetName() const override { return {"ruler-router"}; }
+  void ClearState() override;
+  void SetGuides(GuidesTracks && guides) override;
+  RouterResultCode CalculateRoute(Checkpoints const & checkpoints,
+                                  m2::PointD const & startDirection, bool adjustToPrevRoute,
+                                  RouterDelegate const & delegate, Route & route) override;
+  bool FindClosestProjectionToRoad(m2::PointD const & point, m2::PointD const & direction,
+                                   double radius, EdgeProj & proj) override;
+
+  // Do we need guides in this router?
+  //GuidesConnections m_guides;
+};
+}  // namespace routing