Add debugger serialization and deserialization helpers

UIX/Microsoft/Iris/Debug/DebugRemoting.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Net.Sockets;
 using System.Runtime.Serialization;
@@ -41,4 +40,11 @@ public static class DebugRemoting
             return null;
         }
     }
+
+    internal static byte[] Serialize(this object obj, IFormatter formatter)
+    {
+        using MemoryStream dataStream = new();
+        formatter.Serialize(dataStream, obj);
+        return dataStream.ToArray();
+    }
 }