loongson/pypi: links for stl-obj-convertor

loongson/mirror stl_obj_convertor-0.3.0.tar.gz
loongson/mirror stl_obj_convertor-0.3.0-py3-none-any.whl
loongson/mirror stl_obj_convertor-0.2.0.tar.gz
loongson/mirror stl_obj_convertor-0.2.0-py3-none-any.whl
loongson/mirror stl_obj_convertor-0.1.1.tar.gz
loongson/mirror stl_obj_convertor-0.1.1-py3-none-any.whl
loongson/mirror stl_obj_convertor-0.1.0.tar.gz
loongson/mirror stl_obj_convertor-0.1.0-py3-none-any.whl