/// <summary>
/// Send commands stored in a file. Wait until the commands are transferred and we got a reply (no command pending)
/// </summary>
/// <param name="serial"></param>
/// <param name="filename">used for a StreamReader</param>
/// <param name="waitForMilliseconds"></param>
public static async Task <IEnumerable <SerialCommand> > SendFileAsync(this ISerial serial, string filename, int waitForMilliseconds = DefaultTimeout)
{
var list = await serial.QueueFileAsync(filename);
await serial.WaitUntilQueueEmptyAsync(waitForMilliseconds);
return(list);
}