subtests.docker_daemon: Adds tests for connection with certificate.

Tests generates certificates and sign them up with created CA certificate,
then test connect server and client part with different configurations.

Signed-off-by: Jiří Župka <jzupka@redhat.com>
Ahh right, got it, still I think this is something best left up to whomever setts up the test.  What about making configuration options for server FQDN and client FQDN.  Then you can completely ignore the problem with a test pre-req.:

>  "Both cient and server FQDN's must forward and reverse resolve to separate IP addresses."