root/pypi: links for libsnmp

root/pypi libsnmp-3.0.1.tar.gz
root/pypi libsnmp-3.0.1-py3-none-any.whl
root/pypi libsnmp-3.0.0.tar.gz
root/pypi libsnmp-3.0.0-py3-none-any.whl
root/pypi libsnmp-2.0.5.tar.gz
root/pypi libsnmp-2.0.5-py2.6.egg
root/pypi libsnmp-2.0.4.tar.gz