New feature: Reconnection method about socket.io-client-csharp

[doghappy]

I've changed some of the code, and you can do that if you like.

client.OnClosed += async reason =>
{
    if (reason == ServerCloseReason.ClosedByServer)
    {
        // ...
    }
    else if (reason == ServerCloseReason.Aborted)
    {
        for (int i = 0; i < 3; i++)
        {
            try
            {
                await client.ConnectAsync();
                break;
            }
            catch (WebSocketException ex)
            {
                // show tips
                Console.WriteLine(ex.Message);
                await Task.Delay(2000);
            }
        }
        // show tips
        Console.WriteLine("Tried to reconnect 3 times, unable to connect to the server");
    }
};

[PranKe01]

It would be nice, when SocketIO tries to "reconnect", even when the server was not available on ConnectAsync(). Right now I have a while loop around the connectAsync function, because my app is started, before the socketIO server starts.