The commit adds support for RFC 8998 and draft-yang-tls-hybrid-sm2-mlkem. This includes support for the TLS_SM4_GCM_SM3 and TLS_SM4_CCM_SM3 cipher suites, the key exchange groups curveSM2 and curveSM2MLKEM768, and SM2 public keys and signatures.
While this commit adds support to tls_sockets() to decrypt server responses encrypted under SM4 GCM or CCM, OpenSSL does not support performing key derivation using curveSM2. So, tls_sockets() can not decrypt server responses if the key exchange was performed using curveSM2 or curveSM2MLKEM768.
This commit adds support for the two cipher suites in RFC 9150, TLS_SHA256_SHA256 and TLS_SHA384_SHA384. These are authentication and integrity-only cipher suites.
