Fixed tracking for OpenCV 3.x

AlexeyAB

2018-01-11 89d0c46bb32a98416fb55a9c83c291dd0831c6cc

 src/cost_layer.h

@@ -1,7 +1,7 @@
#ifndef COST_LAYER_H
#define COST_LAYER_H
#include "params.h"
#include "layer.h"
#include "network.h"

typedef layer cost_layer;