includeLibsWrapper for removed config.includeLibs functionality

ext_typoscript_setup.txt

page.1 = USER
page.1.userFunc = Helhum\IncludeLibsWrapper\IncludeLibsWrapper->includeLibs
page.1.includeLibs.hack = fileadmin/hackylib.php

IncludeLibsWrapper.php

<?php
namespace Helhum\IncludeLibsWrapper;

class IncludeLibsWrapper {

    public function includeLibs($content, $conf) {
        if (!empty($conf['includeLibs.'] && is_array($conf['includeLibs.']))) {
        	$GLOBALS['TSFE']->includeLibraries($conf['includeLibs.']);
        }
    }
}