[FIX] pos_restaurant: add missing import

When there are no items in the cart, pressing the print bill button
may result in an error due to the translation (_t) module not being
imported

closes odoo/odoo#43937

X-original-commit: f4ef43e98613c2e916402eb35375a3d39481832f
Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>

addons/pos_restaurant/static/src/js/printbill.js

@@ -4,7 +4,7 @@ odoo.define('pos_restaurant.printbill', function (require) {
 var core = require('web.core');
 var screens = require('point_of_sale.screens');
 var gui = require('point_of_sale.gui');
-
+var _t = core._t;
 var QWeb = core.qweb;
 
 var BillScreenWidget = screens.ReceiptScreenWidget.extend({

doc/cla/individual/lockhaty.md

@@ -0,0 +1,13 @@
+I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr
+
+South Africa, 2020-01-22
+
+I hereby agree to the terms of the Odoo Individual Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Yusuff Lockhat 45769466+lockhaty@users.noreply.github.com https://github.com/lockhaty