Final touches: Anti-hole for flyers (Patreon)

I am giving the game the final touches before the next update. Here are some news:

- Now all flyers characters will not lose a life when falling on holes. Instead, they will lose some health and escape from it. But you have to control the character or it will fall on the hole again. If the character doesn't have enough health, it will lose a life.

- Namor had some improvements. The spins has a better effect thanks to Gate

- His projectile now last longer, has more effects and won't fail as much as on the previous release

If everything goes well, the next update will be release in 2 weeks or less ;)