yolov7 training customize model

1. Prepare the dataset

2. Training

python .\train.py --workers 1 --device 0 --batch-size 8 --epochs 100 --img 640 640 --data .\data\csgo.yaml --hyp .\data\hyp.scratch. custom.yaml --cfg
  .\cfg\training\csgo.yaml --name yolov7-csgo --weights .\yolov7-tiny.pt