Add GDPR Cookie compliance using CMS APIs

Description

CMS has built-in support for GDPR cookie compliance. This needs to be integrated into AB Testing. That is, if a user has not agreed to cookie usage, we should not allow the user to be part of a test, and cannot create cookies for that user. This is supported as documented here.
https://world.episerver.com/documentation/developer-guides/CMS/personalization/disable-visitor-group-personalization/

The solution is to call the IAggregatedPersonalizationEvaluator.Personalize and, if any of the implemented return false, the user is not included in the test, and no cookies will be created.