Fixed paths to OpenCV from vc12 to vc14

AlexeyAB

2017-01-15 e83d8e56d56978e5c2e571b8b4bf05b90a851ce0

 src/cost_layer.c

@@ -31,7 +31,7 @@

cost_layer make_cost_layer(int batch, int inputs, COST_TYPE cost_type, float scale)
{
    fprintf(stderr, "Cost Layer: %d inputs\n", inputs);
    fprintf(stderr, "cost                                           %4d\n",  inputs);
    cost_layer l = {0};
    l.type = COST;