New cpp folder structure

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

libs/storage/country_parent_getter.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "storage/storage.hpp"
+
+#include <memory>
+#include <string>
+
+namespace storage
+{
+class CountryParentGetter
+{
+public:
+  CountryParentGetter(std::string const & countriesFile = "",
+                      std::string const & countriesDir = "");
+  std::string operator()(std::string const & id) const;
+
+  Storage const & GetStorageForTesting() const { return *m_storage; }
+
+private:
+  std::shared_ptr<Storage> m_storage;
+};
+}  // namespace storage