root/pypi: links for sfsdk

root/pypi sfsdk-2.1.8.tar.gz
root/pypi sfsdk-2.1.6.tar.gz
root/pypi sfsdk-2.0.0.tar.gz
root/pypi sfsdk-1.3.6.tar.gz
root/pypi sfsdk-1.3.5.tar.gz
root/pypi sfsdk-1.3.3.tar.gz
root/pypi sfsdk-1.3.1.tar.gz