[ONNX]: Add support for data-free Weight Compression Algorithm (#3273) #3346
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Changes
This PR adds ONNX backend support for the data-free Weight Compression Algorithm.
The implementation:
Reason for changes
This implementation expands NNCF's weight compression support to the ONNX backend,
complementing existing support for OpenVINO, Torch, and TorchFX backends.
This allows users to directly compress ONNX models without conversion to other formats.
Related tickets
Fixes #3273
Tests