Add Croatian (hr) translation

Add complete Croatian translation for Adminer, including all strings
in adminer/lang/hr.inc.php, plural forms support in lang.inc.php,
and Croatian descriptions and translations for all plugins.

plugins/editor-views.php

@@ -18,5 +18,6 @@ class AdminerEditorViews extends Adminer\Plugin {
 		'pl' => array('' => 'Wyświetlaj widoki w Adminer Editorze'),
 		'ro' => array('' => 'Afișează vizualizări în Adminer Editor'),
 		'ja' => array('' => 'Adminer Editor にビューを表示'),
+		'hr' => array('' => 'Prikazuje poglede u Adminer Editoru'),
 	);
 }