Allows viewClass override, doing it this way allows one to extend AjaxView to load application specific helpers for example:

Configure viewClass for this plugin, this code goes to your controller:
```php
// Plugin would use Ajax.Ajax viewClass by default
// Setting it to plain Ajax allows using app specific AjaxView
$this->loadComponent('Ajax.Ajax',[
	'viewClass' => 'Ajax'
]);
```

Extend plugin view to implement your own stuff, namespace tells you where to put this file:
```php
namespace App\View;
use Ajax\View\AjaxView as PluginAjaxView;
class AjaxView extends PluginAjaxView {
    // Load your custom stuff here
}
```