Regeneration changes.

Lot of items reworks and stat changes.

Added armor stat.

Golden king ending unlocks specific items.

Added rot ending.

Added second golden king ending.

Added unlock board.

Added 9 special rooms that can spawn randomly.

Fixed bug that prevented challenge mode from appearing.

Fixed some visual bugs.

Reduced some visual effects (lighinings and explosions).

Fixed bug when prices would not show in shop.

And probably something more that I forgot about.