Update for Danube (work in progress)

Update for Danube (work in progress)

JIRA: VES-1

Removed preliminary versions of tests for now.
Aligned with the Models vHello_3Node_Tacker test.
Separated out actions for collectd and monitor install and
run them directly vs thru the container.
Added parameters as needed for the new design.
Updated with typical overview of the test/demo flow.
Add port 30000 ingress to vHello security group.
Remove juju workaround for port_security.
Remote use of id_rsa (replaced with notes on ssh assumptions).
Use VDU3 (LB) in traffic generation.

Change-Id: I42807449f7526efcd191c0b7b0b4754ffcfffa6e
Signed-off-by: bryan <bryan.sullivan@att.com>