Merge pull request opencv#18184 from cabelo:yolov4-in-model

ADD yolov4 in models.yml

Author: cabelo

samples/dnn/models.yml

@@ -15,8 +15,9 @@ opencv_fd:
   rgb: false
   sample: "object_detection"
 
+# YOLO4 object detection family from Darknet (https://github.com/AlexeyAB/darknet)
 # YOLO object detection family from Darknet (https://pjreddie.com/darknet/yolo/)
-# Might be used for all YOLOv2, TinyYolov2 and YOLOv3
+# Might be used for all YOLOv2, TinyYolov2, YOLOv3, YOLOv4 and TinyYolov4
 yolo:
   model: "yolov3.weights"
   config: "yolov3.cfg"