This change adds documentation for all of the plugins currently
found in the tripleo-ansible repo. This will provide for much
greater visability into what we're providing and will allow
users and developers to better understand how to consume
the available resources.
Change-Id: I2f5813095cbadd999bc68235278a9da1f883e01e
Signed-off-by: Kevin Carter <kecarter@redhat.com>