Phase 2 trained model - multi-task learning with adversarial hardening

Add phase 2 multi-task training script

Add training script

Add training documentation

Add normalization parameters for inference

Retrained model with proper normalization - 100% accuracy

Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub

initial commit