netron visualization of yolov4-csp and yolov4

[jaqub-manuel]

Dear @WongKinYiu, Thank you for your nice work. In my study, I got yolov4-csp and yolov4 netron images. Since there is no yolov4.yaml file, I trained the model with the yolov4.yaml (similar to yolov4-csp, csp only in backbone) file I made and visualized it with netron. If I ask, can you see if yolov4 and yolov4 csp visualization is correct. The first figure shows yolov4-csp, the second figure shows yolov4. Thank you in advance.

[WongKinYiu]

connection between feature pyramids are missing. the figure just connect blocks in yaml's order, the from layers should be considered for drawing the figure.