Added support of 2-3 bit symmetric mode to LoRA-QAT - #4158
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2) Removed 6bit from repacking.
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Changes
LoRA-QAT now support two new modes: CompressWeightsMode.INT3_SYM and CompressWeightsMode.INT2_SYM.
New function repack_weights was added to repack 4-8 bit weights to lower bit representation if possible.
Reason for changes
Support of 2-3 bit in compression in QAT and pytorch backend.
Related tickets
CVS-180191
Tests
In progress.