Work on AI
AIPlayer.java
   > AIPlayer will correctly remember hadCardsOfDeclaredValue of his own firstTurn,  hadCardsOfDeclaredValue won't be changed on his own first turn notification
Work on stats
HumanPlayerStatistics moved to AIPlayer.HumanStats nested class
Player.java
   + currentIndex field, set in ctor
GameServer.java
   > players are being created in ctor
   -- totally removed stats code
AIPlayer moved to gamemechanics package
   + HumanStats - a nested class
   > HumanStats
      > checks and lie recording in the same way with total count of them and counts for different cards counts and laps
   + laps mechanics in notifyFirst/DependentTurn(..)
   + stats gathering in notifyDependentTurn(..)