feat: add hasCardRewards field to account details features

[mcoburnmx]

Summary of Changes

We have a requirement to control the display of a rewards feature based on whether a credit card is eligible for rewards. Thus I have added the hasCardRewards field to the account details features per the documentation here.

Fixes # HW2-1747

Public API Additions/Changes

Added the hasCardRewards field to account details features.

Downstream Consumer Impact

This shouldn't affect any downstream consumers as it is just the addition of a new field.

How Has This Been Tested?

I built the changes and referenced them from a connector to verify that I can set the field and that the connector can return it in its JSON response.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• [-] I have added tests that prove my fix is effective or that my feature works