enabled mask for websocket encoding

Dependencies.props

@@ -1,5 +1,5 @@
 <Project>
   <PropertyGroup>    
-    <SuperSocketVersion>2.0.0-beta.24</SuperSocketVersion>
+    <SuperSocketVersion>2.0.0-beta.26</SuperSocketVersion>
   </PropertyGroup>
 </Project>

src/WebSocket4Net/HandshakePipelineFilter.cs

@@ -6,6 +6,11 @@ namespace WebSocket4Net
 {
     internal class HandshakePipelineFilter : WebSocketPipelineFilter
     {
+        public HandshakePipelineFilter()
+            : base(requireMask: false)
+        {
+        }
+
         protected override HttpHeader CreateHttpHeader(string verbItem1, string verbItem2, string verbItem3, NameValueCollection items)
         {
             return HttpHeader.CreateForResponse(verbItem1, verbItem2, verbItem3, items);

src/WebSocket4Net/WebSocket.cs

@@ -36,7 +36,15 @@ namespace WebSocket4Net
 
         private readonly EndPoint _remoteEndPoint;
 
-        private static readonly IPackageEncoder<WebSocketPackage> _packageEncoder = new WebSocketEncoder();
+        private static readonly IPackageEncoder<WebSocketPackage> _packageEncoder = new WebSocketMaskedEncoder(ArrayPool<byte>.Shared, new int[]
+            {
+                1024,
+                1024 * 4,
+                1024 * 8,
+                1024 * 16,
+                1024 * 32,
+                1024 * 64
+            });
 
         private List<string> _subProtocols;