Ingress and Gateway API

[aojea]

Since cloud provider kind v0.9.0 Ingress and Gateway API are supported by default. Also, cloud provider kind already handles the external to cluster traffic, we can just update our docs and no longer depend on third party projects and port mapping

• Update Ingress docs
• Add a new section for Gateway or merge it with the Ingress one

[rayowang]

@aojea Hi Antonio, I’ve been working on this recently, so I can give it a try and work on fixing it.

[rayowang]

/assign