Fixed training, calculation mAP and anchors for Yolo v3

AlexeyAB

2018-03-28 3fc3fd0f1f1924acb7195fe98fe68648e4056a09

 src/layer.h

@@ -135,6 +135,7 @@
    float coord_scale;
    float object_scale;
    float noobject_scale;
   float mask_scale;
    float class_scale;
    int bias_match;
    int random;