Shadowman Sprint DemoJam Workload (#797)

* Add Shadowman-Sprint ocp workload

* Add additional steps to shadowman-sprint workload

* Add wait to ensure that the secret exists

* Further updates to shadowman ocp-workload

* Abstract Slack properties

* Building directive-consumer jar part I

* Making directive-consumer.jar available through httpd

* Update playbook to push directive consumer to OpenShift

* Updating location for join-link ConfigMap

* Move join link to environment variable instead of using a config map

* Increase number of retries for added safety buffer on time-sensitive requests, and switch producer route to use plain HTTP