[Ajout] Generation des routes

src/main/java/app/SimulatorApplication.java

src/main/java/controller/Controller.java

src/main/java/model/EntitySpawner.java

src/main/java/model/Fire.java

src/main/java/model/FireFighterScenario.java

src/main/java/model/Road.java

src/main/java/util/DirectionUtils.java

src/main/java/util/PathGenerator.java

src/main/java/util/Position.java

src/main/java/util/PositionUtil.java