Fix Kirby score variable and game over condition

[eugeneyjy]

1. Add one more number of digits (up to 100 000s) and fix the order of score digits from RAM lookup.

2. Workaround and fix game over condition. Due to the way Kirby's Dream Land work, the game_over() can't be simply do return self.lives_left == 0 and self.health == 0. When Kirby has 1 lives left, in reality, the player can still die twice (having 2 lives). However, when the player die with 1 lives left, their health will remain 0 while their lives left will get set to 0. Although this only happens in a split seconds, it will make the game_over() function return True even though the player still have 1 more live to go. It seems like self.lives_left can't go below 0 as well, that's why I go with this workaround. Not sure if that's the best way or against the practice.

[Baekalfen]

Looks good to me. I've approved the test runners, so let's see what they say. If all good, let's merge it :)

[Baekalfen]

Thanks for the patch!