Some modifications in update method related to firefighter

.../classes/java/main/controller/PersistentToggleGroup.class

build/classes/java/main/model/Board.class

build/classes/java/main/model/BoardElement.class

...classes/java/main/model/Builder/ConcreteGameBuilder.class

...sses/java/main/model/Builder/FireFirefighterBuilder.class

build/classes/java/main/model/Builder/GameBuilder.class

build/classes/java/main/model/Builder/GameManage.class

build/classes/java/main/model/EmptyElement.class

build/classes/java/main/model/ExtinguishFire/Cloud.class

...asses/java/main/model/ExtinguishFire/ExtinguishFire.class

.../classes/java/main/model/ExtinguishFire/FireFighter.class

...java/main/model/ExtinguishFire/MotorizedFireFighter.class

build/classes/java/main/model/Flammable/Fire.class

build/classes/java/main/model/Flammable/Flammable.class

build/classes/java/main/model/GameBoard.class

build/classes/java/main/model/Obstacle/Mountain.class

build/classes/java/main/model/Obstacle/Obstacles.class

build/classes/java/main/model/Obstacle/Road.class

build/classes/java/main/model/Visitor/CrossMountain.class

build/classes/java/main/model/Visitor/CrossRoad.class