New cpp folder structure

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

libs/map/style_tests/helpers.hpp

@@ -0,0 +1,31 @@
+#pragma once
+
+#include "indexer/classificator_loader.hpp"
+#include "indexer/map_style.hpp"
+#include "indexer/map_style_reader.hpp"
+
+#include "base/logging.hpp"
+
+namespace styles
+{
+template <class TFn>
+void RunForEveryMapStyle(TFn && fn)
+{
+  auto & reader = GetStyleReader();
+  for (size_t s = 0; s < MapStyleCount; ++s)
+  {
+    MapStyle const mapStyle = static_cast<MapStyle>(s);
+    if (mapStyle != MapStyle::MapStyleMerged)
+    {
+      reader.SetCurrentStyle(mapStyle);
+      classificator::Load();
+      LOG(LINFO, ("Test with map style", mapStyle));
+      fn(mapStyle);
+    }
+  }
+
+  // Restore default style.
+  reader.SetCurrentStyle(kDefaultMapStyle);
+  classificator::Load();
+}
+}  // namespace styles