loongson/pypi: links for fixturegen

loongson/mirror fixturegen-0.8.tar.gz
loongson/mirror fixturegen-0.7.tar.gz
loongson/mirror fixturegen-0.6.tar.gz
loongson/mirror fixturegen-0.5.tar.gz
loongson/mirror fixturegen-0.4.tar.gz
loongson/mirror fixturegen-0.3.tar.gz
loongson/mirror fixturegen-0.2.tar.gz