Ultimate Warp Pad

• Add cost type: ITEM
• Add Player Warp cost.
• Admin now can modify all warp
• Fall damage now configurable.

New config:

cost:
  # Allow players to edit cost of their own warps
  allow-player-edit-cost: false
  # Default material used when cost type is ITEM
  item-material: DIAMOND
  admin-warp:
    type: FREE
    amount: -1
  player-warp:
    type: XP
    amount: -1