New cpp folder structure

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

libs/routing/index_graph_loader.hpp

@@ -0,0 +1,46 @@
+#pragma once
+
+#include "routing/edge_estimator.hpp"
+#include "routing/index_graph.hpp"
+#include "routing/route.hpp"
+#include "routing/speed_camera_ser_des.hpp"
+#include "routing/vehicle_mask.hpp"
+
+#include "routing_common/num_mwm_id.hpp"
+#include "routing_common/vehicle_model.hpp"
+
+#include <memory>
+#include <vector>
+
+class MwmValue;
+
+namespace routing
+{
+class MwmDataSource;
+
+class IndexGraphLoader
+{
+public:
+  virtual ~IndexGraphLoader() = default;
+
+  virtual IndexGraph & GetIndexGraph(NumMwmId mwmId) = 0;
+  virtual Geometry & GetGeometry(NumMwmId numMwmId) = 0;
+
+  // Because several cameras can lie on one segment we return vector of them.
+  virtual std::vector<RouteSegment::SpeedCamera> GetSpeedCameraInfo(Segment const & segment) = 0;
+  virtual void Clear() = 0;
+
+  static std::unique_ptr<IndexGraphLoader> Create(
+      VehicleType vehicleType, bool loadAltitudes,
+      std::shared_ptr<VehicleModelFactoryInterface> vehicleModelFactory,
+      std::shared_ptr<EdgeEstimator> estimator, MwmDataSource & dataSource,
+      RoutingOptions routingOptions = RoutingOptions());
+};
+
+void DeserializeIndexGraph(MwmValue const & mwmValue, VehicleType vehicleType, IndexGraph & graph);
+
+uint32_t DeserializeIndexGraphNumRoads(MwmValue const & mwmValue, VehicleType vehicleType);
+
+bool ReadRoadAccessFromMwm(MwmValue const & mwmValue, VehicleType vehicleType, RoadAccess & roadAccess);
+bool ReadSpeedCamsFromMwm(MwmValue const & mwmValue, SpeedCamerasMapT & camerasMap);
+}  // namespace routing