update ordering app,

03_source/mobile/src/pages/DemoOrderingApp/store/index.tsx

@@ -0,0 +1,5 @@
+export { default as CoffeeStore } from "./CoffeeStore";
+export { default as CoffeeSizeStore } from "./CoffeeSizeStore";
+export { default as CoffeeOfferStore } from "./CoffeeOfferStore";
+export { default as CartStore } from "./CartStore";
+export { default as FavouriteStore } from "./FavouriteStore";