- globals.ts
Created _Scheduler object.

- cpu.ts
Removed extraneous code.

- scheduler.ts
Created CPU Scheduler class.
Contains: constructor, which creates Scheduler object; addProcess(), which
adds a process to the Scheduler; contextSwitch(), which executes a context
switch; onCycle(), which decrements time unit counters each CPU cycle.

- shell.ts
Began work on runall command.
Amended load so that no code will be loaded into memory if no code is
given by user.
- index.html
Included processRegisters.js and scheduler.js.

- globals.ts
Added _PCB and _Units.

- control.ts
Rewrote displayPCB to display multiple processes.

- cpu.ts
Modified to display PCB and update Scheduler.

- kernel.ts
Implemented Round Robin scheduling for execution.

- process.ts
Removed class.

- processRegisters.ts
Created class to manage variables used by processes.

- scheduler.ts
Logged all scheduling events.
Corrected bugs for context switches not occuring often enough and pid not
	being stored.

- shell.ts
Modified load command.
Modified run command to work with CPU Scheduler.
Wrote command runall.
- cpu.ts
Fixed bugs related to running multiple programs at once.

- scheduler.ts
Added function to remove an id from the scheduler.
Fixed bugs related to running multiple programs at once.

- shell.ts
Fixed bugs related to running multiple programs at once.
Worked on kill command.
- cpu.ts
Removed unnecessary code.

- processRegisters.ts
Fixed bug related to killing processes.

- shell.ts
Finished kill command.
- cpu.ts
Handled invalid op codes.