Add load-balancer service

In preparation for an openstack-load-balancer cookbook add the service
so that we can create a database, message queues and endpoints.

Conflicts:
  attributes/messaging.rb

Added minor version bump for stable branch.

Change-Id: I4e67ec649124a16470c72bc831bd2825b3741449
(cherry picked from commit e009657be1)

attributes/default.rb

@@ -46,6 +46,7 @@ default['openstack']['common']['services'] = {
   'dns' => 'designate',
   'identity' => 'keystone',
   'image' => 'glance',
+  'load_balancer' => 'octavia',
   'network' => 'neutron',
   'object_storage' => 'swift',
   'orchestration' => 'heat',

attributes/messaging.rb

@@ -36,7 +36,7 @@ default['openstack']['bind_service']['mq']['interface'] = nil
 ###################################################################
 services = %w(aodh bare_metal block_storage compute database dns image
               identity telemetry network orchestration placement
-              baremetal block-storage)
+              baremetal block-storage load_balancer)
 
 ###################################################################
 # Generic default attributes

metadata.rb

@@ -3,7 +3,7 @@ maintainer       'openstack-chef'
 maintainer_email 'openstack-discuss@lists.openstack.org'
 license          'Apache-2.0'
 description      'Common OpenStack attributes, libraries and recipes.'
-version          '19.2.1'
+version          '19.3.0'
 
 %w(ubuntu redhat centos).each do |os|
   supports os