Add services/floodlight/Dockerfile back in
Add services/floodlight/Dockerfile back in

I think it was mistakenly deleted.

carmine/open-kilda,carmine/open-kilda,nikitamarchenko/open-kilda,telstra/open-kilda,carmine/open-kilda,telstra/open-kilda,jonvestal/open-kilda,jonvestal/open-kilda,telstra/open-kilda,telstra/open-kilda,nikitamarchenko/open-kilda,nikitamarchenko/open-kilda,carmine/open-kilda,jonvestal/open-kilda,nikitamarchenko/open-kilda,telstra/open-kilda,telstra/open-kilda,nikitamarchenko/open-kilda,jonvestal/open-kilda,nikitamarchenko/open-kilda,carmine/open-kilda,carmine/open-kilda,jonvestal/open-kilda,telstra/open-kilda