Add animations / text for points score

[sofroniewn]

When you reach the target with extra remaining moves there should be an animation / text indicating that you get extra points for having those moves left over. This incentives people to take the shortest path

You should maybe be told that you get extra points for reaching the target (more than just the bits)

Similarly if you complete a level with extra lives you should get extra points, this incentives people not to waste lives