Added F1 score to accuracy statistic

AlexeyAB

2018-03-01 be9ccb7d7f4135a41910e6401fbe0c604f1a4080

 src/network.h

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