Add Four Over Six quantization integration (#43970)
* Add fouroversix integration and docs
* Small fix
* Update quantized modules outside of FourOverSixQuantize
* Delete high-precision parameters during conversion and before weight loading
* Update year
Co-authored-by: Mohamed Mekkouri <93391238+MekkCyber@users.noreply.github.com>
* Replace FourOverSixLinear check with QuantizedModule check
* Run fix-repo
* Update fouroversix
* Update check_docstrings
* Fix keep_master_weights
* Update get_quantized_parameters API
* Apply repo consistency fixes
* Check whether each parameter in a module should be quantized
* Update FourOverSixConfig
* Fix docstring
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Co-authored-by: Mohamed Mekkouri <93391238+MekkCyber@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Marc Sun <57196510+SunMarc@users.noreply.github.com>
