This change adds contributing documentation to illustrate how
developers can test roles using molecule on local machines.
To assist in local testing an rc environment file has been
added to the project root which will ensure ansible is
configured to use resources out of this project.
Change-Id: I237f743aa85fac9eb56a4c7aac54a7545cc125db
Signed-off-by: Kevin Carter <kevin@cloudnull.com>
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