Fix for tools/lorisform_parser (#8201)

Following #7446, one of the changes involves php/libraries/NullModule.class.inc that now requires a LorisInstance type parameter.

This fix adds a missing parameter in the lorisform_parser.php script.

tools/lorisform_parser.php

@@ -55,7 +55,14 @@
     echo "Requiring file...\n";
     include_once $file;
     echo "Instantiating new object...\n";
-    $obj =new $className($lorisInstance, new NullModule(), "", "", "", "");
+    $obj =new $className(
+        $lorisInstance,
+        new NullModule($lorisInstance),
+        "",
+        "",
+        "",
+        ""
+    );
     echo "Initializing instrument object...\n";
     $obj->setup(null, null);