Resolve "sounds in gameplay"

frontend/assets/cannon.png

frontend/assets/sounds/driving-tank.mp3

frontend/assets/tank-khaki.png

frontend/assets/terrain-seed.json

frontend/core/src/com/game/tankwars/CollisionDetection.java

frontend/core/src/com/game/tankwars/ResourceManager.java

.../src/com/game/tankwars/controller/FindGameController.java

...core/src/com/game/tankwars/controller/GameController.java

...e/src/com/game/tankwars/controller/TerrainController.java

frontend/core/src/com/game/tankwars/view/GameHud.java