New: Support note on trips module

ChangeLog

htdocs/compta/deplacement/deplacement.class.php

htdocs/compta/deplacement/fiche.php

htdocs/compta/deplacement/note.php

htdocs/compta/deplacement/pre.inc.php

htdocs/compta/facture.php

htdocs/compta/facture/note.php

htdocs/compta/paiement/fiche.php

htdocs/compta/pre.inc.php

htdocs/facture.class.php

htdocs/install/mysql/migration/2.7.0-2.8.0.sql

htdocs/install/mysql/tables/llx_deplacement.sql