Opitmal (Clairvoyance) Page Replacement Algorithm.

Implemented in JAVA.

	- Reference String Generation.
		- Page diversity of 100, from 0-99.
		- Implemented the 90 - 10 rule
			- "90% of the time the same 10 programs's are being used"
	
	- Simulation of the optimal algorithm.
		- "If we could see into the future and know which program will be used"
		- An implementation of LFU. (Least Frequently Used).