* This method allows looking up custom config based on client hello
* Expand certificate registry type to allow for both certs and config

* Create function to parse client auth from annotation
* Set tls config when adding tls spec from ingress
* functions to parse and add configs to registry

* Store tls.Config in registry to allow for certs and config to be stored
* Refactor registry to handle setting configs with hash for comparison
* Only ClientAuth and certs can be set with option for more tls configs