增加vendor

vendor/github.com/silenceper/wechat/v2/officialaccount/message/reply.go

@@ -0,0 +1,15 @@
+package message
+
+import "errors"
+
+// ErrInvalidReply 无效的回复
+var ErrInvalidReply = errors.New("无效的回复消息")
+
+// ErrUnsupportReply 不支持的回复类型
+var ErrUnsupportReply = errors.New("不支持的回复消息")
+
+// Reply 消息回复
+type Reply struct {
+	MsgType MsgType
+	MsgData interface{}
+}