New test cases for openflow add and update

These tests test particular scenarios and are not
design to run within integration process because
of their time requirements.

Change-Id: Idcbbc7baad98c7e095bd0662176659a37de1943b
Signed-off-by: Peter Gubka <pgubka@cisco.com>
(cherry picked from commit ae512232a1b043f09d187ce75c64ab49672f6ce6)

Change-Id: I9092e8a04ba07e82013388fbf377b7cb866d2e17
Signed-off-by: Luis Gomez <ecelgp@gmail.com>
Merge "New test cases for openflow add and update" into stable/helium