Pass const ref parameters as in parameters in C# bindings

_amend in parameters

Source/Tools/Flax.Build/Bindings/BindingsGenerator.Parsing.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Runtime.InteropServices;
 
 namespace Flax.Build.Bindings
 {
@@ -1041,7 +1042,12 @@ namespace Flax.Build.Bindings
             if (isGetter)
                 propertyInfo.Getter = functionInfo;
             else
+            {
                 propertyInfo.Setter = functionInfo;
+
+                // Setter value parameter should always be const, forces bindings to pass value as "in" instead of "ref"
+                CollectionsMarshal.AsSpan(functionInfo.Parameters)[0].IsConst = true;
+            }
             propertyInfo.DeprecatedMessage = functionInfo.DeprecatedMessage;
             propertyInfo.IsHidden |= functionInfo.IsHidden;