Add missing vpnaas class in example manifest
Add missing vpnaas class in example manifest

examples/neutron was missing neutron::agents::vpnaas which is useful
for people wanting to write manifests based on puppet-neutron module.

Change-Id: I374c4315472d46397c1cc2152bd35e1cdfd7336a
Signed-off-by: Emilien Macchi <d605a501dec15c980af71d9dfebf4b595ab6da1f@enovance.com>

hkumarmk/puppet-neutron,redhat-cip/puppet-neutron,NeCTAR-RC/puppet-neutron,larsks/puppet-neutron,CiscoSystems/puppet-neutron,NeCTAR-RC/puppet-neutron,fuel-infra/puppet-neutron,IPnett/puppet-neutron,JioCloud/puppet-neutron,IPnett/puppet-neutron,fuel-infra/puppet-neutron,larsks/puppet-neutron,arnaudmorinol/puppet-neutron,trihoangvo/puppet-neutron,fuel-infra/puppet-neutron,CiscoSystems/puppet-neutron,aldavud/puppet-neutron,hkumarmk/puppet-neutron,cloudbuy/puppet-neutron,cloudbuy/puppet-neutron,rdo-puppet-modules/puppet-neutron,CiscoSystems/puppet-neutron,cloudbuy/puppet-neutron,varunarya10/puppet-neutron,DarkHorseComics/puppet-neutron,redhat-cip/puppet-neutron,aldavud/puppet-neutron,JioCloud/puppet-neutron,markvoelker/puppet-neutron,arnaudmorinol/puppet-neutron,hkumarmk/puppet-neutron,markvoelker/puppet-neutron,varunarya10/puppet-neutron,openstack/puppet-neutron,openstack/puppet-neutron,NeCTAR-RC/puppet-neutron,plumgrid/puppet-neutron,redhat-cip/puppet-neutron,aldavud/puppet-neutron,DarkHorseComics/puppet-neutron,IPnett/puppet-neutron,trihoangvo/puppet-neutron,JioCloud/puppet-neutron,rdo-puppet-modules/puppet-neutron,plumgrid/puppet-neutron