Initial release of Isle of Bios

[Vaans]

• I have followed [proper Hercules code styling][code].
• I have read and understood the [contribution guidelines][cont] before making this PR.
• I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

This pull request introduces the initial release of the Isle of Bios instance, adding new NPCs, quests, items, and instance mechanics.

Changes Included

• Added NPC_Comet for in-game interactions.
• Integrated Quest Database entries related to the Isle of Bios.
• Updated Item Database with relevant items for the instance.
• Implemented the Instance mechanics, including spawn points and progression logic.

Issues Addressed

This PR resolves #241 , ensuring the instance is fully functional and integrated with the existing game mechanics.

Testing & Validation

• Instance tested for proper enemy spawns and player interactions.
• NPC dialogs and quest flow verified.
• Items correctly registered in the database.
• No breaking changes detected with existing content.

Additional Notes

Further balancing and improvements may be required based on feedback.
Any additional suggestions or testing feedback are welcome.
This is a conversion of the original files from rA with some modifications to make them work in Hercules.