Setting Client CA

[ModEtchFill]

Trying to setup client CAs, it looks like some config needs to be hooked up.

https://github.com/paypal/hera/blob/master/lib/tls_listener.go#L74

https://github.com/paypal/hera/blob/master/tests/e2e/srvmysql/hera.txt

ClientCAs on https://pkg.go.dev/crypto/tls#Config

[voicup]

Please see my proposal at main...voicup:hera:certs