setScoreSystem - provides the player with the point system that will be used in subsequent games
until a new point system is specified by the same method. Players can assume that (1) this will be
the first method called on a PokerSquaresPlayer, and (2) it will be followed immediately by a call
to init(). The amount of time allotted to the player to prepare for using this system is given by
parameter millis. After the given number of milliseconds, or after the player returns
from this method, the player should be ready to play. It is permissible to perform such computation
on a separate thread, but the player should be able to play immediately after the return from this
method or after the allotted time, whichever comes first.
getPlay - gets the current play position for a given card within the allotted number of milliseconds.
Each card passed to getPlay has been drawn from the game deck.
Each legal returned move will be made for the player.
Thus, this method contains all information necessary to maintain current game state for the player.
It is the player's responsibility to record its own moves, which and how many cards have been played, etc.