loongson/pypi: links for emcstream

loongson/mirror emcstream-0.6.tar.gz
loongson/mirror emcstream-0.5.tar.gz
loongson/mirror emcstream-0.4.tar.gz
loongson/mirror emcstream-0.3.tar.gz
loongson/mirror emcstream-0.2.tar.gz
loongson/mirror emcstream-0.1.tar.gz