Enable metrics qdr to use public VIP
Enable metrics qdr to use public VIP

This patch adds HAProxy configuration for MetricsQdr service, so that
QDRs running on controller nodes in interior mode can be accessed
by external clients (such as CloudForms)

Depends-On: https://review.opendev.org/700250
Change-Id: I048cebe08d5e63693799b93c649231acfc772922

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo