Added class GameState and attributes fingersLeft & fingersRight
to Player class.
Added new attribute socketNumber in Player class
and minor changes in FingerGameServer class
Added new module game with classes Player, Field and GameState 
to manipulate with game play.
in GameState class added methods findNextPlayer and isPlayerOut
in Player class added attribute isOut
in FingerGameServer changed  gameState -> gameStateMap
in game module changed classes Player and GameState classes
Player -> added field isOut(string!)
GameState -> gameOver attribute and changed methods change_game_state to
work when some player isOut == "true"

in GUI added functionality for nextField when player isOut