Added the folder with scripts that show flow statistics summaries in a mininet with OVS switches.

Change-Id: I671c4e236faa74cbe4a94bf230b2f4249cfcb86b
Signed-off-by: Jan Medved <jmedved@cisco.com>
(cherry picked from commit e511dbc49855da36a5cc3ff9c3b46752cd101a09)