os-floating-ips support
os-floating-ips support

This commit causes the resource to manage floating IPs by way of the
os-floating-ips API.

At the moment, it works with both nova-network and Neutron environments,
but if you use multiple Neutron networks, the network that supports the
floating IP must be listed first.

haxorof/terraform-provider-openstack,haxorof/terraform-provider-openstack,haxorof/terraform-provider-openstack