Add vpnaas and debug filters to setup.cfg
Add vpnaas and debug filters to setup.cfg

Change-Id: I44f7e4a44276a386b6e4d8bfb8370eb103787a21
Closes-Bug: 1257523

dougwig/x-neutron-vpnaas,openstack/neutron-vpnaas,citrix-openstack-build/neutron-vpnaas,openstack/neutron-vpnaas