Show IoU, save anchors to file.Show anchors in the window if used -show

AlexeyAB

2018-03-04 74f98da211d2de6f442304b3829e2458282c286c

 cfg/darknet19_448.cfg

@@ -1,6 +1,8 @@
[net]
batch=128
subdivisions=4
#batch=128
#subdivisions=4
batch=1
subdivisions=1
height=448
width=448
max_crop=512