长安链EVM地址说明

ChainMaker目前已支持的证书模型与以太坊的公钥模型不相同，为此ChainMaker在SDK中支持通过证书的SKI字段转换为EVM中所支持的地址格式。

以下为样例证书信息部分内容：

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 775620 (0xbd5c4)
    Signature Algorithm: ecdsa-with-SHA256
        Issuer: C=CN, ST=Beijing, L=Beijing, O=wx-org1.chainmaker.org, OU=root-cert, CN=ca.wx-org1.chainmaker.org
        Validity
            Not Before: Apr 30 07:04:20 2021 GMT
            Not After : Apr 29 07:04:20 2026 GMT
        Subject: C=CN, ST=Beijing, L=Beijing, O=wx-org1.chainmaker.org, OU=admin, CN=admin1.sign.wx-org1.chainmaker.org
        Subject Public Key Info:
            Public Key Algorithm: id-ecPublicKey
                Public-Key: (256 bit)
                pub: 
                    04:05:63:4d:46:6f:b0:3e:30:cb:4f:b3:12:93:da:
                    10:1e:d4:50:ea:36:ac:3f:85:e4:3b:c3:a8:7e:ff:
                    4a:57:7d: