fix: 修复当base64字符串长度不为4的倍数时，解码失败的问题

update: 提高根据ISO匹配国家名称的正确率
fix: 修复vmess的port和aid不规范导致无法解析的问题
modify: 一些没用的修改

model/proxy_group.go

@@ -17,6 +17,44 @@ type ProxyGroup struct {
 	Size          int      `yaml:"-"`
 }
 
+type SelectProxyGroup struct {
+	Name    string   `yaml:"name,omitempty"`
+	Type    string   `yaml:"type,omitempty"`
+	Proxies []string `yaml:"proxies,omitempty"`
+}
+
+type UrlTestProxyGroup struct {
+	Name      string   `yaml:"name,omitempty"`
+	Type      string   `yaml:"type,omitempty"`
+	Proxies   []string `yaml:"proxies,omitempty"`
+	Url       string   `yaml:"url,omitempty"`
+	Interval  int      `yaml:"interval,omitempty"`
+	Tolerance int      `yaml:"tolerance,omitempty"`
+	Lazy      bool     `yaml:"lazy"`
+}
+
+func (p ProxyGroup) MarshalYAML() (interface{}, error) {
+	switch p.Type {
+	case "select":
+		return SelectProxyGroup{
+			Name:    p.Name,
+			Type:    p.Type,
+			Proxies: p.Proxies,
+		}, nil
+	case "url-test":
+		return UrlTestProxyGroup{
+			Name:      p.Name,
+			Type:      p.Type,
+			Proxies:   p.Proxies,
+			Url:       p.Url,
+			Interval:  p.Interval,
+			Tolerance: p.Tolerance,
+			Lazy:      p.Lazy,
+		}, nil
+	}
+	return nil, nil
+}
+
 type ProxyGroupsSortByName []ProxyGroup
 type ProxyGroupsSortBySize []ProxyGroup