添加一个MailMessage类，用于构造邮件参数

添加一个方法用于发送 MailMessage 参数的邮件

sms4j-Email-plugin/sms4j-Email-api/src/main/java/org/dromara/email/api/MailClient.java

@@ -1,5 +1,7 @@
 package org.dromara.email.api;
 
+import org.dromara.email.comm.entity.MailMessage;
+
 import java.io.InputStream;
 import java.lang.String;
 import java.util.List;
@@ -87,6 +89,15 @@ public interface MailClient {
     */
     void sendEmail(List<String> mailAddress, String title, String body,List<String> cc,List<String> bcc,Map<String,String> files);
 
+    /**
+     *  sendEmail
+     * <p> 发送邮件，可以通过对象构造群体发送或者单体发送，取决于添加进去的收件人，同时可以添加
+     * 密送人，抄送人，附件等参数
+     * @param mailMessage 发送邮件参数对象
+     * @author :Wind
+    */
+    void sendEmail(MailMessage mailMessage);
+
     /**
      *  sendHtml
      * <p> 读取模板发送html邮件，无正文

sms4j-Email-plugin/sms4j-Email-comm/src/main/java/org/dromara/email/comm/entity/MailMessage.java

@@ -1,4 +1,4 @@
-package org.dromara.email.core.entity;
+package org.dromara.email.comm.entity;
 
 import lombok.Getter;
 

sms4j-Email-plugin/sms4j-Email-core/src/main/java/org/dromara/email/core/service/MailService.java

@@ -7,6 +7,7 @@ import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.util.StrUtil;
 import org.dromara.email.api.MailClient;
 import org.dromara.email.api.Parameter;
+import org.dromara.email.comm.entity.MailMessage;
 import org.dromara.email.comm.errors.MailException;
 import org.dromara.email.comm.utils.HtmlUtil;
 import org.dromara.email.comm.utils.ZipUtils;
@@ -114,6 +115,16 @@ public class MailService implements MailClient {
         }
     }
 
+    @Override
+    public void sendEmail(MailMessage mailMessage) {
+        sendEmail(mailMessage.getMailAddress(),
+                mailMessage.getTitle(),
+                mailMessage.getBody(),
+                mailMessage.getCc(),
+                mailMessage.getBcc(),
+                mailMessage.getFiles());
+    }
+
     @Override
     public void sendHtml(String mailAddress, String title, String htmlName, Map<String, String> parameter) {
         sendHtml(Collections.singletonList(mailAddress), title, htmlName, parameter);