set console encoding to utf-8

make ANSI console that does not have simplified chinese characters display correctly

OKP.Core/Program.cs

@@ -59,6 +59,7 @@ public static void Main(string[] args)
                            rollOnFileSizeLimit: true)
                        .CreateLogger();
                        IOHelper.NoReaction = o.NoReaction;
+                       Console.OutputEncoding = System.Text.Encoding.UTF8;
                        if (o.TorrentFile is null)
                        {
                            Log.Fatal("o.TorrentFile is null");