Fixed paths to OpenCV from vc12 to vc14

AlexeyAB

2017-01-15 e83d8e56d56978e5c2e571b8b4bf05b90a851ce0

 src/convolutional_layer.c

@@ -8,6 +8,8 @@
#include <stdio.h>
#include <time.h>

#pragma comment(lib, "cudnn.lib")  

#ifdef AI2
#include "xnor_layer.h"
#endif