adapt installer config for arm64

Author: chcg

installer/PythonScript.wxs

@@ -3,6 +3,8 @@
 
 	<?if $(var.Platform) = x64 ?>
 		<?define ProductName = "PythonScript plugin for Notepad++ (64 bit)" ?>
+	<?elseif $(var.Platform) = arm64 ?>
+		<?define ProductName = "PythonScript plugin for Notepad++ (arm64 bit)" ?>
 	<?else?>
 		<?define ProductName = "PythonScript plugin for Notepad++" ?>
 	<?endif?>