Email verification code

#Send email verification code ```javascript WXAPI.mailValidateCode(mail) ``` + mail email address ```json { "code": 0, "msg": "success" } ``` # Check whether the verification code is correct ```javascript WXAPI.mailValidateCodeCheck(mail, code) ``` After detection, the verification code will be invalid immediately, please use it with caution ```json { "code": 0, "msg": "success" } ```