loongson/pypi: links for datascienceutils

loongson/mirror datascienceutils-1.2.25-py3.6.egg
loongson/mirror datascienceutils-1.2.23-py3.6.egg
loongson/mirror datascienceutils-1.2.21-py3.6.egg
loongson/mirror datascienceutils-1.2.19-py3.6.egg
loongson/mirror datascienceutils-1.2.18-py3.6.egg