支持加载使用gzip命令压缩的maat JSON文件。允许先压缩、后加密，不支持先加密后压缩。

inc/Maat_rule.h

@@ -159,7 +159,8 @@ enum MAAT_INIT_OPT
 	MAAT_OPT_ENABLE_UPDATE,			//VALUE is interger, SIZE=sizeof(int). 1: Enabled, 0:Disabled.  DEFAULT: Backgroud update is enabled. Runtime setting is allowed.
 	MAAT_OPT_ACCEPT_TAGS,			//VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. Format is a JSON, e.g.{"tags":[{"tag":"location","value":"Beijing/ChaoYang/Huayan/22A"},{"tag":"isp","value":"telecom"}]}
 	MAAT_OPT_FOREIGN_CONT_DIR,		//VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. Specifies a local diretory to store foreign content. Default: []table_info_path]_files
-	MAAT_OPT_GARBAGE_COLLECTION_TIMEOUT_MS //VALUE is interger, SIZE=sizeof(int). DEFAULT:10,000 milliseconds.
+	MAAT_OPT_GARBAGE_COLLECTION_TIMEOUT_MS, //VALUE is interger, SIZE=sizeof(int). DEFAULT:10,000 milliseconds.
+	MAAT_OPT_JSON_IS_GZIPPED		//VALUE is NULL, SIZE is 0. Default: 0, Not compressed by gzip.
 };
 //return -1 if failed, return 0 on success;
 int Maat_set_feather_opt(Maat_feather_t feather,enum MAAT_INIT_OPT  type,const void* value,int size);