MS Painted

BLOCKS
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＋ added block destroy stages
＋ added nether portal
＋ added cake
＋ added pumpkin and melon stems
~ fixed potted fern
~ fixed shading on comparator
~ updated netherrack/nether quartz ore
~ updated powered detector rail
~ updated sandstone/red sandstone top
~ updated yellow and orange terracotta
~ updated prismarine
~ updated vertical dispenser and dropper
~ updated tnt top and bottom
＋ added coarse dirt blockstates
＋ added slime block blockstates
＋ added packed ice blockstates

ITEMS
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~ fixed iron trapdoor GUI rotation
~ fixed stray green pixel on hopper
~ updated barrier
~ updated structure void
＋ added nothing.png

OTHER
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＋ added optifine better grass, colourmaps, and custom skies
~ updated claimed advancement title box