Add all CRDs to the openstack category

[mdbooth]

This allows the user to do 'kubectl get openstack' to list all ORC OpenStack resources
of every type, e.g.:

$ kubectl get openstack
NAME                                                ID                                     AVAILABLE   MESSAGE                           AGE
flavor.openstack.k-orc.cloud/mbooth-cirros-flavor   5b2647a4-888f-4993-87c7-92851d21da01   True        OpenStack resource is available   49s

NAME                                               ID                                     AVAILABLE   MESSAGE                     AGE
image.openstack.k-orc.cloud/mbooth-cirros-cirros   d11a362a-a4c5-4141-b0d3-7ad41f486607   True        Glance image is available   49s

NAME                                                           ID                                     AVAILABLE   MESSAGE                           AGE
network.openstack.k-orc.cloud/mbooth-cirros-provider-network   3fdeb18a-2ad4-4536-bc23-c3c488a382ad   True        OpenStack resource is available   49s

NAME                                            ID                                     AVAILABLE   MESSAGE                           AGE
port.openstack.k-orc.cloud/mbooth-cirros-port   656c452f-5cc1-4d8c-b54b-14eb04e5df1c   True        OpenStack resource is available   49s

NAME                                                          ID                                     AVAILABLE   MESSAGE                           AGE
securitygroup.openstack.k-orc.cloud/mbooth-cirros-allow-ssh   34d2f291-c47c-41f5-9a86-0f1e8f34875a   True        OpenStack resource is available   49s

NAME                                                ID                                     AVAILABLE   MESSAGE                           AGE
server.openstack.k-orc.cloud/mbooth-cirros-server   c832db5e-38de-4a35-87f4-341ef09373e8   True        OpenStack resource is available   49s

NAME                                                              ID                                     AVAILABLE   MESSAGE                           AGE
subnet.openstack.k-orc.cloud/mbooth-cirros-provider-subnet-ipv4   489315d5-1d84-4b7f-9349-f5a14faff452   True        OpenStack resource is available   49s
subnet.openstack.k-orc.cloud/mbooth-cirros-provider-subnet-ipv6   e4dba1d2-f211-4d19-96f9-367eb281a41d   True        OpenStack resource is available   49s

[pierreprinetti]

Or just "orc"?

[pierreprinetti]

Or "openstack" 🤔

[mdbooth]

Or "openstack" 🤔

This was my first choice. Might go back to it. Mostly worried about the potential for naming conflicts, but I guess we're (or anybody else) unlikely to have a resource called 'openstack'... are we?

[mandre]

Great.