新增消息工具包，防止代码重复，方便@ 逻辑

robot.py

@@ -60,6 +60,7 @@ from xiuren.xiuren_pdf import generate_pdf_from_images
 
 from message_util import MessageUtil
 
+
 class Robot(Job):
     """个性化自己的机器人
     """
@@ -92,7 +93,7 @@ class Robot(Job):
         # 点歌模块加载
         self.music = BotMusic(wcf, self.gbm)
         # 签到模块加载
-        self.signin = SignInSystem(wcf, self.gbm, self.allContacts, self.db_pool, self.redis_pool,self.message_util )
+        self.signin = SignInSystem(wcf, self.gbm, self.allContacts, self.db_pool, self.redis_pool, self.message_util)
         # 积分赠送功能加载
         self.trade = PointTrade(wcf, self.gbm, self.db_pool)
         # 获取视频模块