New show on project "overview" tab the informations about movements stock

htdocs/core/class/html.formprojet.class.php

htdocs/langs/en_US/stocks.lang

htdocs/product/stock/class/mouvementstock.class.php

htdocs/product/stock/mouvement.php

htdocs/projet/class/project.class.php

htdocs/projet/element.php