New cpp folder structure

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

libs/geometry/point_with_altitude.cpp

@@ -0,0 +1,61 @@
+#include "geometry/point_with_altitude.hpp"
+
+#include "std/boost_container_hash.hpp"
+
+#include <sstream>
+
+namespace geometry
+{
+PointWithAltitude::PointWithAltitude()
+  : m_point(m2::PointD::Zero()), m_altitude(kDefaultAltitudeMeters)
+{
+}
+
+PointWithAltitude::PointWithAltitude(m2::PointD const & point, Altitude altitude/* = kDefaultAltitudeMeters */)
+  : m_point(point), m_altitude(altitude)
+{
+}
+
+bool PointWithAltitude::operator==(PointWithAltitude const & r) const
+{
+  return m_point == r.m_point && m_altitude == r.m_altitude;
+}
+
+bool PointWithAltitude::operator<(PointWithAltitude const & r) const
+{
+  if (m_point != r.m_point)
+    return m_point < r.m_point;
+
+  return m_altitude < r.m_altitude;
+}
+
+std::string DebugPrint(PointWithAltitude const & r)
+{
+  std::ostringstream ss;
+  ss << "PointWithAltitude{point:" << DebugPrint(r.m_point) << ", altitude:" << r.GetAltitude()
+     << "}";
+  return ss.str();
+}
+
+PointWithAltitude MakePointWithAltitudeForTesting(m2::PointD const & point)
+{
+  return PointWithAltitude(point, kDefaultAltitudeMeters);
+}
+
+bool AlmostEqualAbs(PointWithAltitude const & lhs, PointWithAltitude const & rhs, double eps)
+{
+  return AlmostEqualAbs(lhs.GetPoint(), rhs.GetPoint(), eps) && lhs.GetAltitude() == rhs.GetAltitude();
+}
+}  // namespace geometry
+
+namespace std
+{
+size_t hash<geometry::PointWithAltitude>::operator()(geometry::PointWithAltitude const & point) const
+{
+  size_t seed = 0;
+  boost::hash_combine(seed, point.GetPoint().x);
+  boost::hash_combine(seed, point.GetPoint().y);
+  boost::hash_combine(seed, point.GetAltitude());
+  return seed;
+}
+}  // namespace std