Mildomの仕様変更に対応

Author: ryu-s

MildomSitePlugin/IMessageProvider.cs

@@ -6,8 +6,10 @@ namespace MildomSitePlugin
     public interface IWebSocket
     {
         event EventHandler<string> Received;
+        event EventHandler<byte[]> BinaryReceived;
         event EventHandler Opened;
         Task SendAsync(string s);
+        Task SendAsync(byte[] b);
         Task ReceiveAsync();
         void Disconnect();
     }