Update for multiTracker_test.cpp->multiTracker_dataset.cpp

Sample has been renamed: tld_test.cpp->tracker_dataset.cpp
Updated to read parameters from cmd:
-Algorithm name
-Root dataset path
-Dataset ID
-Number of targets to track

modules/tracking/samples/tracker_dataset.cpp

@@ -37,7 +37,7 @@
 // or tort (including negligence or otherwise) arising in any way out of
 // the use of this software, even if advised of the possibility of such damage.
 //
-//M*//
+//M*/
 
 #include "opencv2/datasets/track_vot.hpp"
 #include <opencv2/core/utility.hpp>