Spawn husks in deserts

[AnimalRacional]

If ENABLE_MOB_VARIANTS is defined:

• When spawning an hostile mob check the spawn chunk's biome; if it's a desert, spawn a husk instead of a zombie.
• When a husk hits a player, apply a penalty of 150 saturation; if the player can't take the full penalty, divide the unremoved saturation by 50 and apply it to hunger instead, resetting their saturation to 200 (the value it's reset to when hunger is lost naturally). This way, if a player takes the full penalty on hunger, they lose 3 hunger points, but most of the time loses only 1 or 2

From #125

[p2r3]

Extra newline? Or missing newline at the bottom? You decide.

[AnimalRacional]

I'm not completely sure what you mean, so I took from spawnMob and put a newline both at the top and the bottom