Added a test-case to include non-atomic column to test the ser/de-ser pipeline in...

Please note that, this is added to make sure we will replace the ugliness of OvsDBSet/OvsDBMap from the Client
facing API towards internals.

Change-Id: I3d798816e697f53af3f07b504ad06715e5ab7393
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>