Update examples

Author: filmor

example/Class1.cs renamed to example/TestClass.cs

@@ -2,16 +2,18 @@
 using System.Runtime.InteropServices;
 using System;
 
-namespace example
+namespace Example
 {
-    public class Class1
+    public class TestClass
     {
     	public static int Test(IntPtr arg, int size) {
             var buf = new byte[size];
-            Marshal.Copy(arg, buf);
+            Marshal.Copy(arg, buf, 0, size);
             var bufAsString = Encoding.UTF8.GetString(buf);
             var result = bufAsString.Length;
-            Console.WriteLine($"Called {nameof(Test)} in {nameof(Class1)} with {bufAsString}, returning {result}");
+            Console.WriteLine($"Called {nameof(Test)} in {nameof(TestClass)} with {bufAsString}, returning {result}");
+            Console.WriteLine($"Binary data: {Convert.ToBase64String(buf)}");
+
             return result;
         }
     }