loongson/mirror: links for flyer-composer

loongson/mirror flyer_composer-1.0.tar.gz
loongson/mirror flyer_composer-1.0-py3-none-any.whl
loongson/mirror flyer-composer-1.0rc2.tar.gz
loongson/mirror flyer_composer-1.0rc2-py3-none-any.whl
loongson/mirror flyer-composer-1.0rc1.tar.gz
loongson/mirror flyer_composer-1.0rc1-py2.py3-none-any.whl