add ChildCount to Metadata model

Author: devusb

models.go

@@ -48,6 +48,7 @@ type Metadata struct {
 	AddedAt               int          `json:"addedAt"`
 	Art                   string       `json:"art"`
 	ContentRating         string       `json:"contentRating"`
+	ChildCount            int          `json:"childCount"`
 	Duration              int          `json:"duration"`
 	GrandparentArt        string       `json:"grandparentArt"`
 	GrandparentKey        string       `json:"grandparentKey"`