New cpp folder structure

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

libs/search/displayed_categories.cpp

@@ -0,0 +1,42 @@
+#include "search/displayed_categories.hpp"
+
+#include "base/macros.hpp"
+
+#include <algorithm>
+
+namespace search
+{
+DisplayedCategories::DisplayedCategories(CategoriesHolder const & holder) : m_holder(holder)
+{
+  m_keys = {"category_eat",
+            "category_hotel",
+            "category_food",
+            "category_tourism",
+            "category_wifi",
+            "category_transport",
+            "category_fuel",
+            "category_parking",
+            "category_shopping",
+            "category_secondhand",
+            "category_atm",
+            "category_nightlife",
+            "category_children",
+            "category_bank",
+            "category_entertainment",
+            "category_water",
+            "category_hospital",
+            "category_pharmacy",
+            "category_recycling",
+            "category_rv",
+            "category_police",
+            "category_toilet",
+            "category_post"};
+}
+
+void DisplayedCategories::Modify(CategoriesModifier & modifier)
+{
+  modifier.Modify(m_keys);
+}
+
+std::vector<std::string> const & DisplayedCategories::GetKeys() const { return m_keys; }
+}  // namespace search