add_tag(String fileName, String tag)
User can create a new tagremove_tag(String fileName, String tag)
User can remove a tagget_all_files(String tag)
User can get all files with a specific tagget_all_tags(String fileName)
User can get all tag namesget_all_tags_for_file(String fileName)
User can get all tags for a fileupdate_tag(String oldTag, String newTag)
User can update a tag nameupdate_file(String oldFileName, String newFileName)
User can update a file name