Added make file to compile quicker
Cleaned up formatting and added a few comments to computerplayer.c
Finished playFork and added several other functions

playFork can function as blockFork would by passing the opponents
game piece rather than the players, so that has been completed.
Functions to handle playing open corners and open edges are in place,
as well as a method of playing the center if open.  Once a function
to play opposite corners is in place the ai should be complete