loongson/pypi: links for bsxprinter

loongson/mirror bsxprinter-0.4.tar.gz
loongson/mirror bsxprinter-0.4-py2.py3-none-any.whl
loongson/mirror bsxprinter-0.3.tar.gz
loongson/mirror bsxprinter-0.3-py2.py3-none-any.whl
loongson/mirror bsxprinter-0.2.tar.gz
loongson/mirror bsxprinter-0.2-py2.py3-none-any.whl