配置清理，增加vpn信息清理

dns欺骗增加一个初始化无策略-默认组-欺骗ip配置(存储+下发)

src/main/resources/sql/truncate_tables.sql

@@ -63,4 +63,6 @@ UPDATE specific_service_cfg SET group_id=0;
 DELETE FROM ip_reuse_addr_pool;
 DELETE FROM ip_reuse_ip_cfg;
 DELETE FROM ip_reuse_policy_cfg;
-DELETE FROM user_manage;
+DELETE FROM user_manage;
+#clear vpn
+DELETE FROM service_dict_info  where item_type='5';