Support reconciliation and resource removal

[lmakarov]

After spending some time to get kubeflare running (#13), I realized that, at its current state, it does not support drift detection and reconciliation. Also, resource removal is not supported.

I'm looking to move Cloudflare management entirely into the GitOps workflow.
While this could also be done with tools like Terraform/Pulumi, a Kubernetes-native solution would provide automatic resolution of rogue changes and drifts (at least so I hoped).

Any short/long term plans to support these?

[diamonwiggins]

@lmakarov we definitely have plans to support both here. Its on my short list to get this implemented for DNS Records as a start.