Add hwloc package to IBP
Add hwloc package to IBP

`lstopo` command is used from this package
to discover numa topology by fuel-nailgun-agent

Change-Id: I25279750959b1fb8918575c2b9a8be70d0b56d5b
Related-Bug: #1550335
Implements: blueprint support-numa-cpu-pinning

stackforge/fuel-web,stackforge/fuel-web,stackforge/fuel-web