Added a basic test for designate recordset being created when a
floating ip is assigned to a port on a fixed network.

ping will not work because the port is still down as it is not assigned
to a vm. This helps test designate without
nova/glance/cinder/milkyway/...  and other astronomical services.

Also fixed a type in pools file name.

designate smoke test try to create a zone and recordset however they
expect the tld to already exists. So creating one.

Co-Authored-By: Dirk Mueller <dmueller@suse.com>