Ajout champ contact à la fiche client

data/schema.sql

@@ -28,6 +28,7 @@ CREATE TABLE IF NOT EXISTS plugin_facturation_clients (
 	date_creation		TEXT NOT NULL DEFAULT CURRENT_DATE CHECK (date(date_creation) IS NOT NULL AND date(date_creation) = date_creation), -- Date d\'inscription
 	telephone			TEXT,
 	email				TEXT,
+	nom_contact			TEXT,
 	note				TEXT
 );