Add Framework-extension for AWS Multi-agent

## Language Implementation
- [x] Python
- [ ] TypeScript

## Feature Type
- [ ] Action Provider Template
- [ ] Wallet Provider Template
- [x] Framework Extension
- [ ] Core Requirements
- [ ] Other

## 🚀 The feature, motivation and pitch
Hi,
I'd like to contribute support for the AWS Multi-agent noted on the wishlist.
Please let me know if it would be okay for me to work on this.

Thanks

## Alternatives
No response

## Additional context
No response

## Additional context
No response