- implement a new task_group filtering decorator in Assigner class

- update all the sub-classes that use task_groups to use the decorator
- update fedeval sample workspace to use default assigner, tasks and aggregator
- use of federated-evaluation/aggregator.yaml for FedEval specific workspace example to use round_number as 1
- removed assigner and tasks yaml from defaults/federated-evaluation, superseded by default assigner/tasks
- added additional checks for assigner sub-classes that might not have task_groups
- Addressing review comments
- Updated existing test cases for Assigner sub-classes
- Remove hard-coded setting in assigner for torch_cnn_mnist ws, refer to default as in other Workspaces
- Use aggregator supplied --task_group to override the assinger selected_task_group
- update existing test cases of aggregator cli
- add test cases for the decorator
- Rebased 2-Feb.2
Signed-off-by: Shailesh Pant <[email protected]>

openfl-workspace/workspace/plan/defaults/aggregator.yaml

@@ -3,4 +3,3 @@ settings :
     db_store_rounds : 2
     persist_checkpoint: True
     persistent_db_path: local_state/tensor.db
-