Vagrantfile: Explicitly install Cython before pandas
Vagrantfile: Explicitly install Cython before pandas

Pandas 1.19 requires Cython but it is not automatically installed by Pip.

joelagnel/lisa,credp/lisa,ARM-software/lisa,arnoldlu/lisa,bjackman/lisa,credp/lisa,bjackman/lisa,ARM-software/lisa,mdigiorgio/lisa,arnoldlu/lisa,credp/lisa,mdigiorgio/lisa,ARM-software/lisa,joelagnel/lisa,ARM-software/lisa,credp/lisa