Add missing vat_src_code field to predefined invoices table

htdocs/install/mysql/migration/4.0.0-5.0.0.sql

@@ -161,6 +161,7 @@ ALTER TABLE llx_c_payment_term change fdm type_cdr tinyint;
 
 
 ALTER TABLE llx_facturedet ADD COLUMN vat_src_code varchar(10) DEFAULT '' AFTER tva_tx;
+ALTER TABLE llx_facturedet_rec ADD COLUMN vat_src_code varchar(10) DEFAULT '' AFTER tva_tx;
 ALTER TABLE llx_facture_fourn_det ADD COLUMN vat_src_code varchar(10) DEFAULT '' AFTER tva_tx;
 ALTER TABLE llx_commandedet ADD COLUMN vat_src_code varchar(10) DEFAULT '' AFTER tva_tx;
 ALTER TABLE llx_commande_fournisseurdet ADD COLUMN vat_src_code varchar(10) DEFAULT '' AFTER tva_tx;

htdocs/install/mysql/tables/llx_facturedet_rec.sql

@@ -29,6 +29,7 @@ create table llx_facturedet_rec
   product_type		integer DEFAULT 0,
   label				varchar(255) DEFAULT NULL,
   description		text,
+  vat_src_code					varchar(10)  DEFAULT '',			-- Vat code used as source of vat fields. Not strict foreign key here.
   tva_tx			double(6,3),	             	-- taux tva
   localtax1_tx      double(6,3) DEFAULT 0,    		-- localtax1 rate
   localtax1_type	varchar(10) NULL, 				-- localtax1 type