loongson/pypi: links for schavott

loongson/mirror schavott-0.5.0.tar.gz
loongson/mirror schavott-0.4.1.tar.gz
loongson/mirror schavott-0.3.tar.gz
loongson/mirror schavott-0.2.tar.gz
loongson/mirror schavott-0.1.tar.gz