added printing info how much time winix spent in the ezc engine

added to Request:
timespec timespec_req_stop;
timespec timespec_req_diff;
timespec timespec_ezc_engine_start;
timespec timespec_ezc_engine_stop;

winixd/core/app.h

@@ -79,6 +79,7 @@ public:
 	void Start();
 	void Close();
 	void LogUserGroups();
+	void LogRequestTime();
 	bool Demonize();
 	void SetStopSignal();
 	bool WasStopSignal();