addinf laser impact and source
addinf laser beam sprite
Merge branch 'develop' into feature/laserSat

Conflicts:
	game/src/Game.lua
	game/src/LaserSat.lua
	game/src/Missile.lua
beam now don't reach the target instantly
vladimir makes sound when hit by asteroids
remove asteroids when they explode
[Improvement] Cosmonaut is bigger, lasersats are back even without keyboard and lasersats are smaller.
Merge branch 'develop' of https://github.com/aurelien-defossez/soviet-vs-asteroids into develop

Conflicts:
	game/src/Asteroid.lua
	game/src/LaserSat.lua
	game/src/Space.lua
Merge branch 'develop' of https://github.com/aurelien-defossez/soviet-vs-asteroids into develop

Conflicts:
	game/src/Missile.lua