Reduced modules dependencies:

- made some of dependencies explicit
- removed dependencies to highgui and some other modules where possible
- modified some samples to build without modules

modules/tracking/samples/tutorial_multitracker.cpp

@@ -14,6 +14,7 @@
 #include <iostream>
 #include <cstring>
 #include <ctime>
+#include "roiSelector.hpp"
 
 using namespace std;
 using namespace cv;