enh: Add IsNumber, IsInteger string helpers [Common]
enh: Add IsNumber, IsInteger string helpers [Common]

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