tls: allow enabling the TLS debug trace

Enable the same trace output that the OpenSSL s_client and s_server
support with their `-trace` option. This is invaluable when debugging
reports of TLS bugs as well as when debugging the internal TLS
implementation.

See:
- https://github.com/nodejs/node/issues/25383
- https://github.com/nodejs/node/issues/17936
- https://github.com/postmanlabs/postman-app-support/issues/5918#issuecomment-465311423

PR-URL: https://github.com/nodejs/node/pull/27376


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>