public List<Process> parseProcessFile()

Ekana to read apo arxeio. sto arxeio evala 2 stiles. i prwti einai to
arrival time kai i deuteri to burst time.
Episis ekana mia diorthwsi ston kwdika tou alex sti main, sta stats
pernouse san orisma absolute path. To allaksa wste na doulevei gia olous
(elpizw xD)