:refactor: 重命名app_message.go和media_message.go为appmessage.go和media.go，新增EmoticonMessage结构体以支持表情包消息

internal/wechat/emoticon.go

@@ -0,0 +1,48 @@
+package wechat
+
+import "encoding/xml"
+
+// EmoticonMessage
+// @description: 表情包消息
+type EmoticonMessage struct {
+	XMLName xml.Name `xml:"msg"`
+	Text    string   `xml:",chardata"`
+	Emoji   struct {
+		Text              string `xml:",chardata"`
+		Fromusername      string `xml:"fromusername,attr"`
+		Tousername        string `xml:"tousername,attr"`
+		Type              string `xml:"type,attr"`
+		Idbuffer          string `xml:"idbuffer,attr"`
+		Md5               string `xml:"md5,attr"`
+		Len               string `xml:"len,attr"`
+		Productid         string `xml:"productid,attr"`
+		Androidmd5        string `xml:"androidmd5,attr"`
+		Androidlen        string `xml:"androidlen,attr"`
+		S60v3md5          string `xml:"s60v3md5,attr"`
+		S60v3len          string `xml:"s60v3len,attr"`
+		S60v5md5          string `xml:"s60v5md5,attr"`
+		S60v5len          string `xml:"s60v5len,attr"`
+		Cdnurl            string `xml:"cdnurl,attr"`
+		Designerid        string `xml:"designerid,attr"`
+		Thumburl          string `xml:"thumburl,attr"`
+		Encrypturl        string `xml:"encrypturl,attr"`
+		Aeskey            string `xml:"aeskey,attr"`
+		Externurl         string `xml:"externurl,attr"`
+		Externmd5         string `xml:"externmd5,attr"`
+		Width             string `xml:"width,attr"`
+		Height            string `xml:"height,attr"`
+		Tpurl             string `xml:"tpurl,attr"`
+		Tpauthkey         string `xml:"tpauthkey,attr"`
+		Attachedtext      string `xml:"attachedtext,attr"`
+		Attachedtextcolor string `xml:"attachedtextcolor,attr"`
+		Lensid            string `xml:"lensid,attr"`
+		Emojiattr         string `xml:"emojiattr,attr"`
+		Linkid            string `xml:"linkid,attr"`
+		Desc              string `xml:"desc,attr"`
+	} `xml:"emoji"`
+	Gameext struct {
+		Text    string `xml:",chardata"`
+		Type    string `xml:"type,attr"`
+		Content string `xml:"content,attr"`
+	} `xml:"gameext"`
+}