Added Tile and TileHolder classes
Added GameMap class
Small changes
Added MovePlayer and PlaceTile messages

Also modified Game a bit
Added placeTile to GUI
Added coordinates to Player
Modified Deck class

Added shuffle() and list of used cards
Forgot to add new Message subclasses' enums, adding them now
Large changes in ClientGUI

Added a MapPanel where map is drawn, along with player names on tiles where they currently are.
Everything is still a heavy WIP.
Not sure about image scaling (scaleImage() and resizeImage()) - should such functionality be there at all? If yes, then how to handle it?
Added placeholders for Tile images