development-setup.md: Add basic instructions for testing orchestration
development-setup.md: Add basic instructions for testing orchestration

Add a section that documents the basics for how to configure openshift
for testing an orchestrated build, building on the setup in the
rest of the document.

DBuildService/osbs-client,projectatomic/osbs-client,bfontecc007/osbs-client,bfontecc007/osbs-client,vrutkovs/osbs-client,DBuildService/osbs-client,projectatomic/osbs-client,vrutkovs/osbs-client