Changes to the Company files endpoint

With the release of AccountRight 2021.4, we have made some changes to the Company files endpoint in order to improve performance. 

These changes are:

1. The Subscription property will be null by default.
2. The Subscription property will return its data if the query string parameter $expand is provided with the value Subscription eg
   • /accountright/?$expand=Subscription
   • /accountright/{id}?$expand=Subscription

Note:  the Subscription data is only available if the company is online and does have a subscription. So for example when the API is running locally those files don’t have subscriptions. if there’s no subscription then it just returns null