message: highgui: force loading of imgcodecs module
  required for plugins on Linux (they use imwrite, but there is no link dependency)
diff: @@ -232,8 +232,12 @@ std::vector<FileSystemPath_t> getPluginCandidates(const std::string& baseName)
  return results;
  }
  +// NB: require loading of imgcodecs module
  +static void* g_imwrite = (void*)imwrite;
  +
  void PluginUIBackendFactory::loadPlugin()
  {
  + CV_Assert(g_imwrite);
  for (const FileSystemPath_t& plugin : getPluginCandidates(baseName_))
  {
  auto lib = std::make_shared<cv::plugin::impl::DynamicLib>(plugin);
  