Add unit tests for odl_sfc
Add unit tests for odl_sfc

Change-Id: I8eb037a8c2427695d42207897064b79cb2b03a5d
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

mywulin/functest,opnfv/functest,mywulin/functest,opnfv/functest