YunMeng Shaders - 0.1.0 Alpha 5

Added
- Weather-aware rain, snow, and lightning.

Changed
- Reworked clouds for both styles, with more open clear-weather skies.
- Improved weather fog and lighting, with clearer atmospheric shafts and cloud-controlled underwater beams.
- Improved water reflections and underwater sky visibility.
- Refined both suns with softer sky blending and animated glow; enlarged Guofeng's sun.

Fixed
- Reduced cloud seams, cutoffs, and exposed chunk edges during weather.
- Smoothed near-water lighting and corrected overly bright reflections.
- Prevented light shafts from showing over players and other entities.
- Fixed unwanted land caustics and lightning afterimages.

Known limitations
- In-game Iris testing is still needed, particularly for the reported near-water circle.
- Cloud lighting remains approximate, and performance varies by scene.
