Bug 2146: SFC broken due to new auth requirement (correct fix)

HTTPBasicAuthFilter added to jersey REST client
It attaches Authorization: Basic YWRtaW46YWRtaW4= to HTTP header
It means that username and password is hardcoded to "admin", "admin"

Change-Id: Ib164a8736c5793a670b55347b703f249bdd63e66
Signed-off-by: Andrej Kincel <akincel@cisco.com>