feat: auto create torrent task for http download (#334)

pkg/protocol/http/model.go

@@ -8,6 +8,8 @@ type ReqExtra struct {
 
 type OptsExtra struct {
 	Connections int `json:"connections"`
+	// AutoTorrent when task download complete, and it is a .torrent file, it will be auto create a new task for the torrent file
+	AutoTorrent bool `json:"autoTorrent"`
 }
 
 // Stats for download