New cpp folder structure

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

libs/search/city_finder.cpp

@@ -0,0 +1,43 @@
+#include "search/city_finder.hpp"
+
+#include "indexer/feature_decl.hpp"
+
+using namespace std;
+
+namespace search
+{
+CityFinder::CityFinder(DataSource const & dataSource)
+  : m_unusedBoundaries(dataSource)
+  , m_unusedCache(m_cancellable)
+  , m_finder(dataSource, m_unusedBoundaries, m_unusedCache)
+{
+}
+
+string CityFinder::GetCityName(m2::PointD const & p, int8_t lang)
+{
+  string_view city;
+  m_finder.GetLocality(p, [&](LocalityItem const & item)
+  {
+    item.GetSpecifiedOrDefaultName(lang, city);
+  });
+
+  // Return string, because m_finder.GetLocality() is not persistent.
+  return std::string(city);
+}
+
+string CityFinder::GetCityReadableName(m2::PointD const & p)
+{
+  string_view city;
+  m_finder.GetLocality(p, [&](LocalityItem const & item) { item.GetReadableName(city); });
+
+  // Return string, because m_finder.GetLocality() is not persistent.
+  return std::string(city);
+}
+
+FeatureID CityFinder::GetCityFeatureID(m2::PointD const & p)
+{
+  FeatureID id;
+  m_finder.GetLocality(p, [&id](LocalityItem const & item) { id = item.m_id; });
+  return id;
+}
+}  // namespace search