loongson/pypi: links for py2snes

loongson/mirror py2snes-1.0.4.tar.gz
loongson/mirror py2snes-1.0.3.tar.gz
loongson/mirror py2snes-1.0.2.tar.gz
loongson/mirror py2snes-1.0.1.tar.gz
loongson/mirror py2snes-0.3.0.tar.gz
loongson/mirror py2snes-0.3.0-py3-none-any.whl