This PS moves the configuration files used by libvirt to be
generated directly from the values, rather than being templated.
Change-Id: I8ab2783c9d1d5d815cc02eccafa21058ff3acead
This PS moves libvirt into its own chart - decoupling it from nova,
both making it easier to deploy and use seperately and permitting
use of other compute backends.
Partially implements: blueprint split-nova-and-neutron-infra
Change-Id: I06237157244c3cdb5503eafa01229d061b1614f0