void Main::DoGo()
	{
		GatherTpp tpp;
		String uppfolder = "My U++ folder";

	GatherTpp tpp;
	
	tpp.AddFolder(folder_1_with_Tpp);
	tpp.AddFolder(folder_2_with_Tpp);
	...
	tpp.Load(tpp_file_that_is_index);		// It has a Gate2 arg for progress bar
	tpp.MakeHtml(folder_to_put_html);		// It has a Gate2 arg for progress bar
	tpp.MakePdf(file_to_put_pdf);			// It has a Gate2 arg for progress bar

	int FindTopic(const String name);
	Topic &GetTopic(int id);
	Topic &AddTopic(const String name);
	String GatherTopics(const char *topic, String& title);