Update C# bindings to 1.4.0 API

src/bindings/csharp/PeerInfo.cs

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c)2013-2021 ZeroTier, Inc.
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file in the project's root directory.
+ *
+ * Change Date: 2026-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2.0 of the Apache License.
+ */
+/****/
+
+using System.Net;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+
+using ZeroTier;
+
+namespace ZeroTier.Core
+{
+    public class PeerInfo {
+        public PeerInfo(ulong id, short versionMajor, short versionMinor, short versionRev, byte role)
+        {
+            _id = id;
+            _versionMajor = versionMajor;
+            _versionMinor = versionMinor;
+            _versionRev = versionRev;
+            _role = role;
+        }
+
+        ulong _id;
+        short _versionMajor;
+        short _versionMinor;
+        short _versionRev;
+        byte _role;
+
+        internal ConcurrentDictionary<string, IPEndPoint> _paths = new ConcurrentDictionary<string, IPEndPoint>();
+
+        public ICollection<IPEndPoint> Paths
+        {
+            get {
+                return _paths.Values;
+            }
+        }
+
+        public ulong Id
+        {
+            get {
+                return _id;
+            }
+        }
+
+        public byte Role
+        {
+            get {
+                return _role;
+            }
+        }
+
+        public string Version
+        {
+            get {
+                return string.Format("{0}.{1}.{2}", _versionMajor, _versionMinor, _versionRev);
+            }
+        }
+    }
+}