New cpp folder structure

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

libs/search/string_utils.hpp

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "search/common.hpp"
+
+namespace search
+{
+
+QueryString MakeQueryString(std::string s);
+
+} // namespace search