New cpp folder structure

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

libs/routing/segmented_route.cpp

@@ -0,0 +1,36 @@
+#include "routing/segmented_route.hpp"
+
+#include "routing/index_graph_starter.hpp"
+
+#include "geometry/mercator.hpp"
+
+#include "base/assert.hpp"
+
+#include <algorithm>
+#include <limits>
+
+namespace routing
+{
+SegmentedRoute::SegmentedRoute(m2::PointD const & start, m2::PointD const & finish,
+                               std::vector<Route::SubrouteAttrs> const & subroutes)
+  : m_start(start), m_finish(finish), m_subroutes(subroutes)
+{
+}
+
+double SegmentedRoute::CalcDistance(m2::PointD const & point) const
+{
+  CHECK(!IsEmpty(), ());
+
+  double result = std::numeric_limits<double>::max();
+  for (auto const & step : m_steps)
+    result = std::min(result, mercator::DistanceOnEarth(point, step.GetPoint()));
+
+  return result;
+}
+
+Route::SubrouteAttrs const & SegmentedRoute::GetSubroute(size_t i) const
+{
+  CHECK_LESS(i, m_subroutes.size(), ());
+  return m_subroutes[i];
+}
+}  // namespace routing