zurück zur ursprüunglichen calc_mandelbrot version
Initial commit von Hausaufgabe 3
FIFO,SJN und .gitignore
round robin
SJN now correctly uses switch_task

instead of setting it manually
fixed the ordering of tasks with the same length

They are now ordered after time of arrival so that the first task will
be completed first
Correct RR tick timesteps

+minor CycList usability
Fixed a bug with FIFO

if the queue was completely emptied the last pointer wouldn't reset
properly. This is now checked for.
Added Queue Data Structure and updated FIFO

to use this queue
Added Multilevel Feedback Scheduling

using Queues