Update to 3.5.2 and .net core 2.1

Emby.Server.Implementations/Net/WebSocketConnectEventArgs.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using MediaBrowser.Model.Services;
+
+namespace Emby.Server.Implementations.Net
+{
+    public class WebSocketConnectEventArgs : EventArgs
+    {
+        /// <summary>
+        /// Gets or sets the URL.
+        /// </summary>
+        /// <value>The URL.</value>
+        public string Url { get; set; }
+        /// <summary>
+        /// Gets or sets the query string.
+        /// </summary>
+        /// <value>The query string.</value>
+        public QueryParamCollection QueryString { get; set; }
+        /// <summary>
+        /// Gets or sets the web socket.
+        /// </summary>
+        /// <value>The web socket.</value>
+        public IWebSocket WebSocket { get; set; }
+        /// <summary>
+        /// Gets or sets the endpoint.
+        /// </summary>
+        /// <value>The endpoint.</value>
+        public string Endpoint { get; set; }
+    }
+}