Model Optimizations & Fixes

• Remove left hand fix because it's mirroring custom texture like text.
• Remove more Respackopts options may not used
• Experimental, may have changes in future.
• Feature list is rewriting.
• Fix #3, #4.

Fixes

• MC-226453 Potted Azalea is incorrectly shaded when smooth lighting is enabled
• MC-262694 Inner planes of azaleas are shaded
• MC-262695 Inner planes of potted azaleas are shaded
• MC-262696 Potted mangrove propagules appear darker than they should due to shading not being disabled
• MC-267895 Anvil's texture is mapped very strangely
• MC-224392 Big dripleaves are rendered too dark when blocks are placed adjacent to them while smooth lighting is enabled
• MC-236374 Chains are rendered too dark when blocks are placed adjacent to them while smooth lighting is enabled
• MC-262598 Tripwire textures in the tripwire hook "attached: true" state have a wrong black rendering when the tripwire hook is attached to a non-transparent block
• MC-234089 Lightning rods are rendered too dark when blocks are placed adjacent to them while smooth lighting is enabled
• MC-234087 Extinguished campfires are rendered too dark when blocks are placed adjacent to them while smooth lighting is enabled
• Make the item model of Nether Sprouts matches Amethyst Bud
• MC-214625 Unlit redstone torches are unaffected by block shading / are evenly lit on all sides
• MC-172852 Doors aren't affected by ambient occlusion/smooth lighting
• Bell ambient occlusion is disabled
• (Readded) Button item model tweaks