Whole Disk Image Support
Whole Disk Image Support

This spec proposes to add a feature of deploying whole disk images
to Ironic.

Implements blueprint whole-disk-image-support

Change-Id: I37a2734647a57860ca00fbbba28cce4b6550ebb8

NaohiroTamura/ironic-specs,naterh/ironic-specs,bcornec/ironic-specs,openstack/ironic-specs