
This commit adds support for the olso.messaging AMQP 1.0 driver to support notifications. This patch: * use oslo::messaging::amqp resource * add keystone::messaging::amqp class for oslo_messaging_amqp opts * add spec tests for amqp class options * add feature release note Change-Id: I4b56417ce8ee7502ad32da578bdc29c46e459bd5