NSB NFVi PROX VPE losing many packets

NSB NFVi PROX VPE losing many packets

JIRA: YARDSTICK-1105

Running a vPE test ends up with up to 25% drooped packets.
This is due to tolerated loss being incorrectly configured,
test duration was too short and test interval was too
short.

Note This is due to the fact that vPE use case have by
default a tolerated loss of 100%, Now changed to 0.001,
same as L2FWD

Also: Grafan dashboard has been updated to show all SUT
CPUS Utilization in 1 panel. And LINE rate MIN, MAX & TEST
Rate have been added

Change-Id: I7adae2199b3f656fe460705b6aeb3aa69c767d50
Signed-off-by: Daniel Martin Buckley <daniel.m.buckley@intel.com>