loongson/mirror: links for easychrono

loongson/mirror easychrono-0.1.4.tar.gz
loongson/mirror easychrono-0.1.4-py3-none-any.whl
loongson/mirror easychrono-0.1.3.tar.gz
loongson/mirror easychrono-0.1.3-py3-none-any.whl