ironic-python-agent/doc at 3fd68c0848e2d3877e4297f63a1c00232bc70c5d - ironic-python-agent - OpenDev: Free Software Needs Free Tools

The idea is to retreive USB devices informations via 'lshw' and
return the list to ironic in order to be able to create introspection
rules based on USB devices.
Change-Id: I39d60cb467614fca7a7f701dbe576154213580a5