tests: setupNetworks compatibility bond and nic.

Added four functional tests, testing setupNetworks
compatibility for nics and bonds bridged and bridgeless:

* testSetupNetworksNetCompatibilityBondSingleBridge
* testSetupNetworksNetCompatibilityBondSingleBridgeless
* testSetupNetworksNetCompatibilityNicSingleBridge
* testSetupNetworksNetCompatibilityNicSingleBridgeless

Change-Id: If4a497d82723937dbecd14d42fc2c176c4c05bd2
Signed-off-by: Giuseppe Vallarelli <gvallare@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/17621
Reviewed-by: Dan Kenigsberg <danken@redhat.com>