New cpp folder structure

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

libs/search/features_layer.cpp

@@ -0,0 +1,36 @@
+#include "search/features_layer.hpp"
+
+#include "base/internal/message.hpp"
+
+#include <iostream>
+#include <sstream>
+
+using namespace std;
+
+namespace search
+{
+FeaturesLayer::FeaturesLayer() { Clear(); }
+
+void FeaturesLayer::Clear()
+{
+  m_sortedFeatures = nullptr;
+  m_subQuery.clear();
+  m_tokenRange.Clear();
+  m_type = Model::TYPE_COUNT;
+  m_hasDelayedFeatures = false;
+  m_lastTokenIsPrefix = false;
+}
+
+string DebugPrint(FeaturesLayer const & layer)
+{
+  ostringstream os;
+  os << "FeaturesLayer [size of m_sortedFeatures: "
+     << (layer.m_sortedFeatures ? layer.m_sortedFeatures->size() : 0)
+     << ", subquery: " << DebugPrint(layer.m_subQuery)
+     << ", tokenRange: " << DebugPrint(layer.m_tokenRange)
+     << ", type: " << DebugPrint(layer.m_type)
+     << ", lastTokenIsPrefix: " << layer.m_lastTokenIsPrefix
+     << "]";
+  return os.str();
+}
+}  // namespace search