fixing more compile problems with Java bindings etc

samples/android/hello-android/main.cpp

@@ -1,6 +1,7 @@
-#include <opencv2/core/core.hpp>
-#include <opencv2/imgcodecs/imgcodecs.hpp>
-#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/core.hpp>
+#include <opencv2/imgproc.hpp>
+#include <opencv2/imgcodecs.hpp>
+#include <opencv2/highgui.hpp>
 
 using namespace cv;
 const char* message = "Hello Android!";