wrapper: changed function for get default md
wrapper: changed function for get default md

EVP_PKEY_get_default_digest_nid to cert->getSignatureDigest()

TrustedPlus/trusted-crypto,Digt/trusted-crypto,Digt/trusted-crypto,TrustedPlus/trusted-crypto,TrustedPlus/trusted-crypto,TrustedPlus/crypto,TrustedPlus/crypto,TrustedPlus/crypto,TrustedPlus/crypto,TrustedPlus/crypto,Digt/trusted-crypto,Digt/trusted-crypto,Digt/trusted-crypto,TrustedPlus/trusted-crypto,TrustedPlus/trusted-crypto