Adds an ability to enable SNAT service on the seed hypervisor. Depends-On: Ie42ab7a0dc9dd1ed1925b3a17134b3770ae8ba98 Change-Id: I0a2ff5caa01d54b1532d30d501b55ef23a6deff8 Signed-off-by: Maksim Malchuk <maksim.malchuk@gmail.com>