feat:新增超级订阅限制关键词个数配置项

src/jfw/modules/subscribepay/src/config/config.go

@@ -76,6 +76,7 @@ type config struct {
 	Nsq_Topic          string
 	UserCenterApi      string
 	CompanySize        int64
+	VipKeyMaxLength    int64
 }
 type mgoConf struct {
 	Address           string