BZ #1121746 - Integrate n1kv installation with RHEL-OSP installer
https://bugzilla.redhat.com/show_bug.cgi?id=1121746
This enables the installation and configuration of
1. cisco nexus 1000v core plugin,
2. cisco nexus 1000v switch (VEM) on compute and networker nodes
Merge pull request #322 from CiscoSystems/cisco-n1kv

Adding cisco-n1kv plugin support in astapor/foreman
Add support for Cisco Nexus to HA Neutron

Passes the required params to set up Cisco Nexus to the
quickstack::neutron::all resource
Merge pull request #377 from bcrochet/cisco-nexus-ha

Add support for Cisco Nexus to HA Neutron
BZ #1127236 - Create cron job to flush the keystone tokens.

https://bugzilla.redhat.com/show_bug.cgi?id=1127236

Since puppet-keystone does not set this up, add to quickstack. To reduce code
duplication and increase consistency between HA and non, move to using
quickstack::keystone classes as part of this PR.