Extend ciphersuite test coverage.
Extend ciphersuite test coverage.

Add support for testing ECDSA and DSA ciphersuites.

Reviewed-by: Matt Caswell <1fa2ef4755a9226cb9a0a4840bd89b158ac71391@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl