message: dnn(ie): enable KEY_CPU_THREADS_NUM for Windows
diff: @@ -831,18 +831,18 @@ void InfEngineBackendNet::initPlugin(InferenceEngine::CNNNetwork& net)
  CV_LOG_INFO(NULL, "DNN-IE: Can't register OpenCV custom layers extension: " << e.what());
  }
  #endif
  -#ifndef _WIN32
  // Limit the number of CPU threads.
  #if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
  +#ifndef _WIN32
  enginePtr->SetConfig({{
  InferenceEngine::PluginConfigParams::KEY_CPU_THREADS_NUM, format("%d", getNumThreads()),
  }}, 0);
  +#endif // _WIN32
  #else
  if (device_name == "CPU")
  ie.SetConfig({{
  InferenceEngine::PluginConfigParams::KEY_CPU_THREADS_NUM, format("%d", getNumThreads()),
  }}, device_name);
  -#endif
  #endif
  }
  #if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
  