Mansi Sharma

Support for federated evaluation

2

Add an example of federated evaluation using [aggregator based workflow](https://openfl.readthedocs.io/en/latest/running_the_federation.html#aggregator-based-workflow) or the [director based workflow](https://openfl.readthedocs.io/en/latest/running_the_federation.html#director-based-workflow). Federated evaluation refers to model evaluation on the client/collaborator side. Once the global model is...

Signed-off-by: Mansi Sharma Adding in Fedcurv aggregation examples for MNIST, Histology dataset and synthetic dataset.

For manual PKI exchange, certificates are stored under 'cert' directory inside workspace by default. This PR decouples the location of certificates from workspace in that the user can now specify...