[FIX] pos_epson_printer_restaurant: IoT printer selected

When selecting an Epson ePOS printer, the POS tried to print of a
printer connected to an IoT Box.

This happened because the override of create_printer was executed
before its declaration in pos_restaurant.

addons/pos_epson_printer_restaurant/static/src/js/multiprint.js

@@ -4,6 +4,11 @@ odoo.define('pos_epson_printer_restaurant.multiprint', function (require) {
 var models = require('point_of_sale.models');
 var EpsonPrinter = require('pos_epson_printer.Printer');
 
+// The override of create_printer needs to happen after its declaration in
+// pos_restaurant. We need to make sure that this code is executed after the
+// multiprint file in pos_restaurant.
+require('pos_restaurant.multiprint');
+
 models.load_fields("restaurant.printer", ["epson_printer_ip"]);
 
 var _super_posmodel = models.PosModel.prototype;