Federated learning: Tabular data reconstruction

# Feature
## Desired Behavior / Functionality
The attacks on FL are applicable to image data. They should also work for tabular.

## What Needs to Be Done
- Implement attacks for tabular FL
- Start with TabLeaks
- Understand how to use Geiping for tabular
- Write unit tests

## How Can It Be Tested
- Unit tests
- Comapre to Geiping