### SIG Network

For 1.13, the areas of focus were in IPv6, DNS improvements and some smaller items:
CoreDNS is now the default cluster DNS passing all of the scale/resource usage tests

But `include_router` is still useful to, for example, adding options (like `dependencies`, `prefix`, and `tags`) when including a third party router, or a generic router that is shared between several projects.

This PR allows setting the (mostly new) parameters (additionally to the already existing parameters):

* `default_response_class`: updated to handle defaults in `APIRouter` and `FastAPI`.

- Add and update documentation.
- Add support to Manilla for provisioning existing shares.
- Add cluster name to load balancer description
- Add synchronization between Kubernetes and Keystone projects
- Add use internal DNS name for 'hostname' of nodes.
- Add support for CSI spec v0.3.0 for both Cinder and Manilla
- Add 'cascade delete' support for Octavia load balancers to improve performance.

* Bugfix: OpenAPI models may not get group-version-kind extension if kubernetes is vendored in another project (e.g. minikube). Kubectl 1.8 needs this extension to work with those projects. ([#53152](https://github.com/kubernetes/kubernetes/pull/53152), [@mbohlool](https://github.com/mbohlool))

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// https://www.iana.org/domains/root/db/intuit.html
intuit

// investments : Binky Moon, LLC
// https://www.iana.org/domains/root/db/investments.html
investments

// ipiranga : Ipiranga Produtos de Petroleo S.A.
// https://www.iana.org/domains/root/db/ipiranga.html
ipiranga

// irish : Binky Moon, LLC
// https://www.iana.org/domains/root/db/irish.html
irish

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1F4F9..1F4FC  ; valid                  ;      ; NV8    # 6.0  VIDEO CAMERA..VIDEOCASSETTE
1F4FD..1F4FE  ; valid                  ;      ; NV8    # 7.0  FILM PROJECTOR..PORTABLE STEREO
1F4FF         ; valid                  ;      ; NV8    # 8.0  PRAYER BEADS
1F500..1F53D  ; valid                  ;      ; NV8    # 6.0  TWISTED RIGHTWARDS ARROWS..DOWN-POINTING SMALL RED TRIANGLE

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