Ajout champ note à la fiche client

data/schema.sql

@@ -24,7 +24,8 @@ CREATE TABLE IF NOT EXISTS plugin_facturation_clients (
     siret               TEXT,
 	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
+	email				TEXT,
+	note				TEXT
 );