auth_aes128_md5加密

[QuantumLiu]

使用auth_aes128_md5的加密方法，节点显示的加密方法为NONE，开启失败
打印json如下：

user:~$ shadowsocksr-cli --display-json 2
{
    "obfs_param": "d1--cn-gotcha05.bilivideo.com",
    "protocol_param": "6826:kJ0ci9",
    "remarks": "新加坡 | 高速",
    "group": "xxx",
    "server": "153.101.57.15",
    "server_port": 4403,
    "method": "none",
    "obfs": "plain",
    "password": "xxx",
    "protocol": "auth_aes128_md5",
    "ssr_url": "xxx",
    "port_password": null,
    "additional_ports": {},
    "additional_ports_only": false,
    "udp_timeout": 120,
    "udp_cache": 64,
    "fast_open": false,
    "verbose": false,
    "connect_verbose_info": 0,
    "ping": "30.0",
    "connect": true,
    "id": 2
}