New cpp folder structure

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

libs/indexer/feature_processor.hpp

@@ -0,0 +1,31 @@
+#pragma once
+
+#include "indexer/features_vector.hpp"
+
+#include "coding/file_reader.hpp"
+#include "coding/files_container.hpp"
+
+#include <memory>
+#include <string>
+
+namespace feature
+{
+template <class ToDo>
+void ForEachFeature(FilesContainerR const & cont, ToDo && toDo)
+{
+  FeaturesVectorTest features(cont);
+  features.GetVector().ForEach(toDo);
+}
+
+template <class ToDo>
+void ForEachFeature(ModelReaderPtr reader, ToDo && toDo)
+{
+  ForEachFeature(FilesContainerR(reader), toDo);
+}
+
+template <class ToDo>
+void ForEachFeature(std::string const & fPath, ToDo && toDo)
+{
+  ForEachFeature(std::make_unique<FileReader>(fPath), toDo);
+}
+}  // namespace feature