no rotate_nms_kernel.cu and rbbox_overlaps_kernel.cu files in box_utils

[beautifuljade]

There are no rotate_nms_kernel.cu and rbbox_overlaps_kernel.cu files in box_utils directory, so I can't compile nms_gpu and iou_gpu on Windows. Would you update these files?

[zy5037]

https://github.com/mjq11302010044/RRPN/tree/master/lib/rotation

You can get it from here