Added NUF4401MN.
Datasheet: https://www.onsemi.com/pub/Collateral/NUF4401MN-D.PDF Footprint depends on PR: https://github.com/pointhi/kicad-footprint-generator/pull/452
Datasheet: https://www.onsemi.com/pub/Collateral/NUF4401MN-D.PDF Footprint depends on PR: https://github.com/pointhi/kicad-footprint-generator/pull/452