Add a survival method to get to The Hallow

[LemmaEOF]

Adds the Hallowed Gate and Hallow Charm. Surround a Hallowed Gate with 8 redstone dust in the word (redstone dust swappable within the thehallow:gate_circle tag) and right-click with a Hallow Charm. When in The Hallow, hold right-click while holding the Hallow Charm to teleport back to the Hallowed Gate you entered through.

Hallow Charms can be crafted purely with drops from mobs found in The Hallow, and will teleport you to your spawn if you didn't use that charm to enter The Hallow. Equippable as a trinket in the head necklace slot.

To do:

• [x] sound and particle effects
• [ ] make the skull inside the Hallowed Gate spin around with a BER
• [x] loot table for Hallowed Gate
• [ ] REI integration to show what can be used in the circle?

[LemmaEOF]

oh fuck, just realized there's no loot table for the gate yet