* Add copyright header

src/pas2js/fresnel.pas2js.wasmapi.pp

@@ -1,3 +1,18 @@
+{
+    This file is part of the Fresnel Library.
+    Copyright (c) 2024 by the FPC & Lazarus teams.
+
+    Class to expose HTML canvas and mouse events to a Webassembly module.
+
+    See the file COPYING.modifiedLGPL.txt, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+
 {$mode objfpc}
 {$h+}
 {$modeswitch externalclass}