Dev/feature - Future Feature Release

[ShaneBeee]

Describe your changes

This PR outlines a future feature release.

Temp changelog:

ADDED:

• Added a confirmation when attempting to delete an arena
• Added an option to add multiple border centres (will randomly pick one to close in on)
• Added some config options for player tracking (using the player's tracking bar)

Tracking Config Summary

## PLAYER TRACKING
player-tracking:
  # How far in blocks players can see each other on the tracking bar
  # Set to -1 to keep default value (whatever the player's current tracking range is)
  # Set to 0 to disable
  distance: 100

  # Represents the color of enemy players
  # Set to 'disable' to keep default color the player is assigned
  # Accepts int color, `#rrggbb` or `r:g:b` (0-255 for r:g:b) formats
  enemy-player-color: '#EB2D07'

  # Represents the color of enemy entities
  # Set to 'disable' to disable
  enemy-entity-color: '#EBD807'

  # The number of uses a tracking stick will have
  tracking-stick-uses: 8

  # Minimum number of players required in a game for a tracking stick to work
  players-for-tracking-stick: 5

CHANGED:

• The rollback system got a bit of an overhaul:
  • The blocks-per-second config option is now also used when logging blocks (for large arenas this may take a while)
  • The blocks-per-second config option default is now 500000 (adjust accordingly)
  • New option enabled: true, allowing you to turn off the rollback system
• Configs now properly use Locations and World Keys:
  • Current configs will automatically be updated

FIXED:

• Fixed the exit location of an arena not working
• Fixed spectators not having their pre-game data saved

INTERNAL:

• Update to use a new WeightedList for weighted items/mobs
• Added an update checker

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Target Minecraft Versions: any
Requirements: none
Related Issues: none

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• I have read the contributing guidelines