loongson/mirror: links for pypcappy

loongson/mirror pypcappy-0.0.7.tar.gz
loongson/mirror pypcappy-0.0.5.tar.gz
loongson/mirror pypcappy-0.0.4rc0.tar.gz
loongson/mirror pypcappy-0.0.3.tar.gz
loongson/mirror pypcappy-0.0.2.tar.gz
loongson/mirror pypcappy-0.0.1.tar.gz
loongson/mirror pypcappy-0.0.1b.tar.gz