Gets and Sets the Logging property.
A complex type that controls whether access logs are written for the
distribution. For more information, refer:
http://docs.amazonwebservices.com/AmazonCloudFront/latest/DeveloperGuide/AccessLogs.html

The Bucket specifies where the CloudFront access logs will be stored. Maximum length is 128
characters and it must conform to Amazon S3 V2 bucket criteria.
The Prefix is an optional string of your choice to prefix to the access log filenames for this distribution. Maximum length is 256 characters and it can't start with a '/'