Secretflow

- FlModel/SlModel support model path dict.

- Upgrade sf-ppu version to 0.0.7.1

- More perfect HEU
- Split learning benchmark model
- SFXgboost for homo xgboost training

- FL: different batch size for different clients.
- Wait method for pyu objects.
- FLModel evaluate returns detailed metrics.

Added

- Added support for HTTP data source router.

Changed

- **breaking**: Add table **members** in broker storage for P2P mode.
- Speed up GROUP BY with Radix Sort.
- Adjusted configuration items for SCQLEngine and SCQLBroker.

Fixed

- Fixed check for grant ccl in P2P mode.

- [Feature] Re-organize repo layout, add kernel folder for crypto protocols with links
- [Feature] Add ECC lib25519 implementation
- [Feature] Add ECC FourQ implementation
- [Feature] Unify f2k implementaion
- [Bugifx] Fix RandBits implementation

**2024-02-01**