Added a basic MMU and PCB (to be expanded later)
	- Kernel holds references to MMU, current executing PCB
	- TODO: Ready-queue with PCB's
Set up Fetch, Decode, and Execute steps to CPU
Added utility functions to CPU
Added two instructions to CPU
Changed memory/MMU to treat input address as decimal not hex
	- No reason to use hex internally, just for displaying to the user
Added new files to index.html