enh: Add PartialSort and NthElement functions [Common]
enh: Add PartialSort and NthElement functions [Common]

BioMedIA/MIRTK,BioMedIA/MIRTK,stefanpsz/MIRTK,stefanpsz/MIRTK,schuhschuh/MIRTK,stefanpsz/MIRTK,BioMedIA/MIRTK,schuhschuh/MIRTK,stefanpsz/MIRTK,schuhschuh/MIRTK,BioMedIA/MIRTK,schuhschuh/MIRTK