YunMeng Shaders - 0.1.0 Alpha 3

Added
- Subtle and Smooth anti-aliasing.
- Fast and Smooth camera motion blur with a strength control and protection around held items and depth edges.
- View-dependent sun lens flare with two thin arcs and two matching lens ghosts.

Changed
- Default settings are Medium quality, Subtle anti-aliasing, and Fast motion blur at 0.50 strength.

Known limitations
- Spatial anti-aliasing can leave distant shimmer. Motion blur follows camera movement, not individual object animation.
- Lighting and shadows are still being refined.
