onAddToCart() {
			const oEntry =  arguments[0].getSource().getBindingContext().getObject();
			const oCartModel = this.getView().getModel("cartProducts");
			cart.addToCart(this.requestResourceBundle(), oEntry, oCartModel);
		}
Called, when the add button of a product is pressed.
Saves the product, the i18n bundle, and the cart model and hands them to the <code>addToCart</code> function.