Write examples for modules

[aksiome]

Tasks

• [x] Brush painter
• [ ] Lance peinture + charge de peinture en XP bar (move + xp)
• [ ] Life string minigame -> effet négatif synchronisant la vie de 2 entités (health + sidebar)
• [ ] Balle rebondissante (move)

For later

• [ ] Gravity Gun (block, move)
• [ ] Portal Gun ? (move, raycast, id)
• [ ] Imprimante 3D (block)
• [ ] TnT réaliste (move)
• [ ] Add goggly eyes to demonstrate the ability to do physics between different reference frames