loongson/pypi: links for shell-functools

loongson/mirror shell_functools-0.3.1.tar.gz
loongson/mirror shell_functools-0.3.1-py3-none-any.whl
loongson/mirror shell-functools-0.3.0.tar.gz
loongson/mirror shell-functools-0.2.0.tar.gz