Face Painting System for Blocks

A new painting system that allows players to paint individual faces of blocks without changing the block itself. Players could craft Paint Buckets using a Bucket, Water, Dye, Slimeball, and Glowstone Dust. A Paint Brush would apply the paint only to the face of the block being clicked, allowing each side of a block to have a different color. A Paint Remover could also be added to restore painted faces to their original appearance without breaking the block. Paint would only change the texture, not the block properties. A painted wood block would still be wood, and a painted stone block would still be stone. This would give builders more freedom without needing thicker walls or hundreds of new block variants.