message: sarkars/tf to ng node names
diff: #include "ngraph/op/util/logical_reduction.hpp"
  #include "logging/ngraph_log.h"
  +#include "ngraph_bridge/ngraph_api.h"
  #include "ngraph_bridge/ngraph_backend_manager.h"
  #include "ngraph_bridge/ngraph_builder.h"
  #include "ngraph_bridge/ngraph_conversions.h"
  @@ -97,6 +98,9 @@ std::shared_ptr<TOpType> ConstructNgNode(const std::string& op_name,
  auto ng_node = std::make_shared<TOpType>(std::forward<TArg>(Args)...);
  ng_node->set_friendly_name(op_name);
  ng_node->add_provenance_tag(op_name);
  + if (config::IsLoggingPlacement()) {
  + cout << "TF_to_NG: " << op_name << " --> " << ng_node->get_name() << "\n";
  + }
  return ng_node;
  }
  