Add fast texture baking support in Eevee for game asset workflows

Eevee is already a fast real-time renderer, but baking workflows still rely heavily on Cycles or external tools.

I suggest adding a fast baking system directly inside Eevee for game asset creation.

Proposed features:

• Bake Normal Maps using Eevee rendering
• Bake Ambient Occlusion
• Bake Curvature maps
• Bake Roughness / Metallic maps
• Bake Material outputs
• High-poly to low-poly baking workflow
• Automatic cage generation and ray distance control
• Support for batch baking multiple assets

The goal is to make Eevee a complete real-time asset creation pipeline for game developers, allowing users to quickly create optimized assets without switching render engines or external applications.