Added

• Add special model type tolaserblade:laser_blade to render laser blade items.
• Add tint source type tolaserblade:laser_blade to tint laser blade part items.
• Add boolean property tolaserblade:using_original_model to represent condition of laser blades.
• Add boolean property tolaserblade:blocking to represent condition of laser blades.
• New color of brand-new laser blade for pale garden biome.

Changed

• Port to Minecraft 1.21.4.
• Require Forge 1.21.4-54.0.16+.