Modified featg templates for vFW use case that allow to
create two instances of vFW and vSink. Change was required
for tests of Distribute Traffic LCM action in SDN-C and APP-C
Also templates have improved way for association of
floationg IP and installation of vFW components also is corrected.
Change-Id: I47f95c5e01fa4a37c75b8dfe50ed474be5288522
Issue-ID: CCSDK-449
Signed-off-by: Lukasz Rajewski <lukasz.rajewski@orange.com>