[research feature] Introduce INT4 support at the algorithm level (#1641)
Signed-off-by: Wenhua Cheng <wenhua.cheng@intel.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>