moved a comment in schedule about not sure if I need to dequeue or not
at a specific point. Added a KILL Process IRQ, kill process function in
the kernel and a kill command in the shell. Still a lot of "todo" but
for right now it "works." By works, I mean it passed 2 tests, still more
to go... Also, the PCB display does not update correctly .. BUT the PCB
does get removed from the ready queue -- which is the most important
part. Might redo - my PCB display a bit so just going to sit tight on
fixing that for now.