Better hunger and disease options

[Charletrom]

I think the disease difficulty option should be reworked to change disease duration rather than germ resistance. Highest difficulty would double duration (at least) and ideally add a ~10%/cycle stress debuff.

 

for hunger, it might work better to change how many calories dupes recover from eating rather than the calorie burn rate. The effect would be the same regarding food supply but would avoid dupes starving so rapidly.