Blood Rot

AI & Behavior Update
AI & Behavior:
- Horde entities on blood moons can now smell you. They can now track you from up to 200 blocks away.
- All bosses and entities now have dynamic targeting. This means they are MUCH smarter... Good luck.
- Hordes during blood moons no longer spawn super close to the player. They now spawn 50 blocks minimum away from the player and 100 blocks maximum away from the player.
- Bosses and infected entities can no longer hurt each other by any means other than placed fire.

Additions:
- Blast Smelter:
  - The blast smelter can be crafted in the research table. To use it, place it on any block that contains inventory. Then put coal or charcoal inside the blast smelter. Then the blast smelter will cook any items in the block with inventory VERY quickly.

Bug Fixes:
- Backpacks will no longer be picked up by random players and are no longer picked up by the closest player. Instead the player hitting the backpack will pick it up.
- Backpacks will now always face the player when placed.
- Humans can no longer mistakenly have a quest and be a trader at the same time.