message: [swig] Enable autodoc feature
  This patch enables the SWIG `autodoc` feature so that the generated
  Python reference [1] includes class properties.
  [1]
diff: @@ -204,6 +204,7 @@ def do_swig_rebuild(options, dependency_file, config_build_dir, settings):
  "-c++",
  "-shadow",
  "-python",
  + "-features autodoc"
  "-threads",
  "-I" + os.path.normpath(os.path.join(options.src_root, "include")),
  "-I" + os.path.curdir,
  