增加proxy初始化fieldstat，增加sslstream的状态统计输出。

platform/include/internal/proxy.h

@@ -39,6 +39,7 @@ struct tfe_proxy
 	struct event * gcev;
 
 	void * logger;
+	void * fs_handle;
 	unsigned int nr_work_threads;
 	struct tfe_thread_ctx * work_threads[TFE_THREAD_MAX];
 

platform/include/internal/ssl_stream.h

@@ -14,7 +14,7 @@ struct ssl_stream;
 
 struct ssl_mgr;
 struct ssl_mgr * ssl_manager_init(const char * ini_profile, const char * section, struct event_base * ev_base_gc,
-	void * logger, screen_stat_handle_t * fs);
+	void * logger, screen_stat_handle_t fs);
 void ssl_manager_destroy(struct ssl_mgr * mgr);
 
 struct ssl_stream * ssl_upstream_create_result_release_stream(future_result_t * result);