* Add additional network configuration options to external Openstack CCM (#6083)
* Change the default version of external openstack cloud controller image to v1.18.1 since there was an issue in v1.18.0 where some IPs of the private network were ignored
* Change Network section in external-openstack-cloud-config.j2 to Networking
* Add networking customization information in the openstack documentation
* External OpenStack Cloud Controller Manager implementation
* Adding controller image tag
* Minor fixes
* Restructuring the external cloud controller to work with KubeADM
Paul Rey
qvicksilver
Ali Sanhaji