[debian] Update debian packaging (closes #16133259) - use dh_python, pybuild and debhelper>=9, - refactor and simplify the debian/rules, - rename binary packages (but cubicweb-ctl) to python-xxx - remove daemon handling stuff (initscripts...) from cubicweb-ctl (one should now use a standard WSGI delivery method),

#!/bin/sh -e

if [ "$1" = "purge" ] ; then
        rm -rf /etc/cubicweb.d/
        rm -rf /var/log/cubicweb/
        rm -rf /var/lib/cubicweb/
fi

#DEBHELPER#
 
exit 0