New: Add option to clean orphelins files into repair page

htdocs/comm/propal/class/propal.class.php

htdocs/commande/class/commande.class.php

htdocs/compta/facture/class/facture.class.php

htdocs/contrat/class/contrat.class.php

htdocs/core/class/html.formfile.class.php

htdocs/core/lib/files.lib.php

htdocs/fourn/class/fournisseur.commande.class.php

htdocs/fourn/class/fournisseur.facture.class.php

htdocs/install/repair.php