[BTW Addon] Gloomy Hostile

A world on Hostile difficulty will have effects on progression milestones:

• Post-Nether: All nights are gloom, and moon is eternally new. Endermen can pickup (falling) netherrack and burning nethercoal torches (unlit ones won't get picked up).
• Post-Wither: All days are much darker (and blots the sun).
• Post-Dragon: Reverts all side-effects, unless configured otherwise.

You can optionally challenge yourself with World Challenge Level configuration.