Improve Barrier Particle Display

[WaitingIdly]

changes in this PR:

• makes barrier particles always display to players in Creative Mode, regardless of if they are holding a Barrier in their hand (default: false)

[what-the-diff]

PR Summary

• Introduction of New Display Option for Barrier Particles in Creative Mode
  This update introduces a new option that significantly enhances the visualization of barrier particles when the game is in creative mode.

• Added a Java Class to Modify Barrier Particles Behaviour
  The PR includes a new Java class called UTBarrierParticleMixin. This class has been designed to alter how Barrier Particles function within the game considerably.

• Added a JSON File to Specify Mixin Configuration
  Alongside the newly added Java class, this PR also introduces a new JSON file mixins.tweaks.blocks.barrier.json. This file carries the necessary configuration data needed for tweaking Barrier Particle properties.