Add new response fields to Account Management, Quote and Subscription APIs

Enhancements

• New errors,status_detail response fields in the following Account Management API:
  • GET /v2/commerce/accounts/{accountKey}
• New old_subscription_pricelist_id response field in the following Quote API:
  • GET /v2/commerce/quotes/{quoteReferenceId}
• New subscription_pricelist_id response field in the following Quote APIs:
  • GET /v2/commerce/quotes/{quoteReferenceId}
  • GET /v2/commerce/quotes/{quoteReferenceId}
• New subscription_pricelist_id response field in the following Subscription API:
  • GET /v2/commerce/subscriptions/{subscriptionNumber}