Add very basic tests together with NM integration
* start service
* init db
* add basic single ethernet two port setup
* add bond setup
* add vlan setup
Executing these tests:
* nmcli_add_basic_openvswitch_configuration
* nmcli_add_openvswitch_bond_configuration
* nmcli_add_openvswitch_vlan_configuration
* NM_reboot_openvswitch_vlan_configuration
from:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager-ci/blob/master/nmcli/features/ovs.feature