Copy files in folder named after the file name's first char
and in the correct subfolder bytes/, kilobytes/, megabytes/
and gigabytes/ in terms of file size
argv[1] : file extension (ex. .jpg .mp4)
argv[2] : file name's first char
None
Author: Ioannis Sebastian Horgos
Date: 11/30/2022
Univeristy Project, Operating Systems