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_customizing_cn_tracker.cpp

@@ -4,6 +4,7 @@
 #include <opencv2/highgui.hpp>
 #include <iostream>
 #include <cstring>
+#include "roiSelector.hpp"
 
 using namespace std;
 using namespace cv;