Added pseudo LRU functions

New files: PseudoLRU, PseudoLRU.c
Changes to: CacheSimulator.c, CacheSimulator.h, and utility.c
CacheSimulator. h changes

CacheSimulator. h changes
Including CacheSimulator.h file in PseudoLRU.c

Including CacheSimulator.h file in PseudoLRU.c
LRU + utility function updates

LRU + utility function updates
Merge pull request #5 from ddenhart/master

updates