Add automatic replication for C# types with fields marked with NetworkReplicated attribute

Source/Engine/Scripting/Attributes/NetworkReplicatedAttribute.cs

@@ -0,0 +1,14 @@
+// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
+
+using System;
+
+namespace FlaxEngine
+{
+    /// <summary>
+    /// Indicates that a field or a property should be replicated over network.
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
+    public sealed class NetworkReplicatedAttribute : Attribute
+    {
+    }
+}