(StartWizard.java)
Add confirmation to override game before load/start new configuration when game is in started stare.

(MainWindow.java)
clear all cells in game board when new configuration is loaded, otherwise old pictures remains in game board.
All top panel to show game info (bank money, ...)

(Game.java)
add public method to reset all class properties to its default state. This is required when new confituration is loaded. Otherwise old objects may be present after configuration is loaded.

(Tile.java)
use default images, to don't have errors. TODO – replace with real images when icons will be implemented.

(res.coins)
- update coins icons, because old version had small white border.