Added contrail config services

Added contrail config services which includes

1. contrail api server
2. contrail discovery server
3. contrail svc-monitor server
4. contrail schema transformer
5. contrail neutron plugin (neutron to be configured)
lines like this are really painful to read and will be hard to maintain. I'm definitely not going to block this patch because of test readability, but I would much rather see these as either a heredoc or with separate tests for every line you care about