调整目录结构，增加RPM打包功能

* 调整目录结构，原conf目录分拆为conf和resource目录。其中，conf目录在软件更新时不会更新，resource则更新；
* 增加RPM打包功能，利用CI发布软件的RPM，对应调整GitLAB-CI脚本。

plugin/protocol/http/include/internal/http_common.h

@@ -54,11 +54,9 @@ struct http_session_private
 	int release_lock;
 	/* thread id */
 	unsigned int thread_id;
-
-	/* SUSPEND COUNTER, ONLY FOR DEBUG AND LOG */
-#ifndef NDEBUG
+	/* SUSPEND COUNTER, only for debug and log */
 	int suspend_counter;
-#endif
+	/* IN GC QUEUE, means the connection of session has destroyed */
 	bool in_gc_queue;
 };