Description

Refactored the Variant Loader to use a general JSON parser. The parser is now designed to work independently, allowing users to parse and load custom JSON files outside of variants. This improves modularity and reusability across various components.

Changes

• Change 1: Extracted the JSON parsing logic into a standalone general parser.
• Change 2: Updated the Variant Loader to use the general JSON parser for loading variant data.
• Change 3: Added support for external custom JSONs, allowing users to define and load their own JSON structures.

Type of Change

• Bug fix
• New feature
• Cleanup
• Breaking change
• Documentation update

Checklist

• My code follows the style guidelines of this project. [Contributing](https://github.com/MeAlam1/BlueLib/blob/1.21/CONTRIBUTING.md)
• I have performed a self-review of my own code.
• I have commented my code following the guidelines. [Contributing](https://github.com/MeAlam1/BlueLib/blob/1.21/CONTRIBUTING.md)
• My changes generate no new warnings.