Avoid skip compute.info polling when node has no VMs
Avoid skip compute.info polling when node has no VMs

Create a fake resource of local_node for the host. Suggestion comes from
https://github.com/openstack/ceilometer/commit/b7426c545cfce328cf12b0258b2cf7aafdf26a01

SmartInfrastructures/ceilometer-plugin-fiware