Added add endpoint

internal/torrent/client.go

@@ -26,7 +26,22 @@ type TorrentInfo struct {
 	Availability float64
 }
 
+type TorrentFile struct {
+	Filename string
+	Data     []byte
+}
+
+type FindOptions struct {
+	Hash     string
+	Name     string
+	Category string
+	Tag      string
+	State    string
+}
+
 type TorrentClient interface {
 	Login(username string, password string) (string, error)
 	List() ([]TorrentInfo, error)
+	Find(opts FindOptions) ([]TorrentInfo, error)
+	Add(file TorrentFile) error
 }