[Suggested additions]

### Is your feature request related to a problem? Please describe

Various alternative methods to adding security enhancements to Control Tower/Organizations exists. Here are a couple that would be nice to have built out as sample solutions here (Centralize under this framework)

### Describe the solution you'd like

Centralized Flow Logs - Similar to https://aws.amazon.com/blogs/mt/vpc-flow-log-with-aws-control-tower-lifecycle/
Automatic Alternate Contact configuration - Similar to https://aws.amazon.com/blogs/mt/automatically-update-alternate-contacts-for-newly-created-aws-accounts/

### Describe alternatives you've considered
Just use the blogs (although it would be nice to have a single place to access all of these)

### Additional context

Add any other context or screenshots about the feature request here. e.g. link to a new AWS feature