Added Integration Tests for VTN Coordinator

Change-Id: Iad8d5bfd738eb9eb7cc80ad09f046fbe33ad3db8
Signed-off-by: gvrangan <venkatrangang@hcl.com>
(cherry picked from commit d6a34c519262821a798ca623cabe345e6c50947c)

Change-Id: I53c6eb6c9fa0000160ead7d8b6eb2d1cd00b5d2a
Signed-off-by: Luis Gomez <ecelgp@gmail.com>