Li Hongzhou

I check the function tracking::track() in Tracking.cc, and find that if you work in localization mode, your mState will never turn into LOST. But in line 2039, it call Relocalization()...

`ORB_SLAM3::System SLAM(argv[1],argv[2],ORB_SLAM3::System::MONOCULAR, true);` check this code, the last param should be 'true'.