Regex pattern support for world names in NPCs and holograms.

[AxDevv]

📋 Description

Added regex pattern support for world names in NPCs and holograms.
This allows creating a single NPC/hologram that will automatically appear in multiple worlds matching a pattern (e.g., instance_* for instance_1, instance_2, etc.).

✅ Checklist

• My code follows the project's coding style and guidelines
• I have tested my changes locally and they work as expected
• I have added necessary documentation (if applicable)
• I have linked related issues using Fixes #issue_number or Closes #issue_number
• I have rebased/merged with the latest main branch

🔍 Changes

Please provide a brief summary of the changes made in this PR.

FancyNPCs:

• Added regex pattern support for the world field in NPC configuration
• Automatically detects patterns (*, ?, [, {)
• Creates a separate NPC per matching world with unique ID (npcId_worldName)
• Preserves all properties (skin, equipment, actions, attributes) across instances

FancyHolograms:

• Added worldPattern field to HologramData
• Implemented matchesWorld() method for dynamic world validation
• Pattern is saved/loaded in configuration
• Hologram automatically displays in all matching worlds

Modified files:

• plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/NpcManagerImpl.java
• plugins/fancyholograms-v2/api/src/main/java/de/oliver/fancyholograms/api/data/HologramData.java
• plugins/fancyholograms-v2/api/src/main/java/de/oliver/fancyholograms/api/hologram/Hologram.java
• plugins/fancyholograms-v2/src/main/java/de/oliver/fancyholograms/hologram/version/HologramImpl.java

---

🧪 How to Test

Please describe how to manually test the changes made in this PR.

For NPCs:

1. Create multiple worlds with a common pattern (e.g., instance_1, instance_2, instance_3)
2. In npcs.yml, configure an NPC with location.world: "instance_*"
3. Reload the plugin with /npc reload
4. Verify the NPC appears in all instance_* worlds at the same coordinates
5. Check that each NPC has a unique ID in logs/console

For Holograms:

1. Create multiple worlds with a common pattern
2. In holograms.yml, configure a hologram with location.world: "instance_*"
3. Reload the plugin
4. Teleport to each instance_* world and verify the hologram appears
5. Verify the hologram doesn't appear in worlds that don't match the pattern

Supported patterns:

• instance_* → matches instance_1, instance_2, etc.
• world_? → matches world_1, world_a, etc. (single character)
• lobby* → matches lobby, lobby1, lobby_pvp, etc.

[Grabsky]

Could you please explain why this is needed and who is going to benefit from these changes?