feat(registry): new CRD option

[mloiseleur]

Description

This is a follow up of https://github.com/kubernetes-sigs/external-dns/pull/4598, updated with DNSRecord name and rebased on current master code.

This PR is not yet ready, it needs:

1. extensive testing first. FTM, it can only be used in-cluster.
2. usage documentation

The use of an other Kubeconfig will be for an other PR. Same for chart integration, with required new RBAC.

Fixes #4575

Checklist

• [x] Unit tests updated
• [ ] End user documentation updated