Deployment scripts should configure SR-IOV

Deployment procedure should take into account SR-IOV configuration:

* After compute nodes addition or removal, neutron configuration should be
  updated on controllers.

* Library will consume data from astute.yaml.

** l23network will configure interface virtual function, set it up, and store
  network configuration into Operating System config

** additional filters will be enabled for nova-scheduler

** additional mechanism driver will be enabled for Neutron

** `pci_passthrough_whitelist` will be configured in nova-compute. New function
  will be introduced, that returns this mapping between interface name and
  physical network from network_scheme transformations.

** `supported_pci_vendor_devs` will be configured in neutron-server directly
  from corresponding field from astute.yaml.