Fixed tracking for OpenCV 3.x

AlexeyAB

2018-01-11 89d0c46bb32a98416fb55a9c83c291dd0831c6cc

 src/network.h

@@ -64,6 +64,7 @@
    #ifdef GPU
    float **input_gpu;
    float **truth_gpu;
   int wait_stream;
    #endif
} network;