azure-providers.js: Fix selectPackaging() default configuration
azure-providers.js: Fix selectPackaging() default configuration

In e644b11 (azure-providers.js: Product.selectPackaging() selects the
default), the `Product` instances' `packaged` property is not created.
This creates `Product.packaged` and sets a default value to the
cheapest package.

azurestandard/azure-angular-providers,azurestandard/azure-angular-providers