ONNX Export for Refactored Modifiers

[Satrat]

• Updated QuantizationModifier to apply structure before initialization
• New version of export script that is compatible with the new modifier and session framework.The main change is replacing Managers with SparseSessions

Example

sparseml.transformers.export_onnx_refactor --task text-generation --model_path path/to/model/and/recipe

or

python src/transformers/sparsification/obcq/export.py  --task text-generation --model_path path/to/model/and/recipe

[bfineran]

LGTM - would potentially be good to add a way for the current default script sparseml.transfomers.export_onnx to route to this one if it detects one of the new recipes