i18n Italian Translation



Hi, it's possible to configure italian language by myself for example:
web.php:
'i18n' => [
'translations' => [
'fileinput' => [
'class' => 'yii\i18n\PhpMessageSource',
'basePath' => '@app/messages', // example: @app/messages/fr/user.php
],

],
],

or i must wait a new release with italian language?
return [
// FileInput - Italian
'Note:' => 'Note',
'multiple file upload' => 'caricamento file multipli',
'file preview and multiple file upload' => 'anteprima file e caricamento file multipli',
'Browse' => 'Scegli',
'Upload' => 'Carica',
'Remove' => 'Rimuovi',
'Your browser does not support {validation}. Try an alternative or more recent browser to access these features.' => 'Il tuo browser non supporta {validation}. Provane uno alternativo o una versione aggiornata per accedere a questa caratteristica',
];

Thank's