Dungeonslike Blocks

- Added Copper Door item texture. It was previously part of the "Dungeonslike Items" pack
- Added Leaf Litter based on its more autumn-like appearance in Minecraft: Dungeons. The block also is no longer coloured based on a biome tint
- Added Gold, Iron, and Diamond Blocks, which use their respective palettes from "Dungeonslike Items". Gave Diamond a design closer to one of Jappa's earlier texture concepts for it to distinguish it from Gold better.
- Added Fire and Campfire flame textures, which use the palette from the Minecraft Movie Server for Bedrock Edition
- Added Magma as a blend between its appearance in the Bedrock Minecraft Movie Server, and Magma Cubes from "Dungeonslike Mobs"
- Added Iron Doors and Trapdoors, which use the Iron palette from "Dungeonslike Items" and are based on the Iron Door's appearance in the Minecraft Movie Server for Bedrock Edition
- Changed Rails to be more in-line with Vanilla. Previously they just looked kind of stretched and didn't look nice. Also updated their palette to match the Iron (and Gold for Powered Rails) items in "Dungeonslike Items"
- Changed Deepslate to be a blend between the dark stone from Minecraft: Dungeons' Redstone Mines and Fiery Forge levels, the old smooth Deepslate texture, and the Deepslate texture from the Minecraft Movie Server for Bedrock Edition
- Changed Grass to be more in-line with its Vanilla appearance. I didn't like how smooth it looked
- Changed Emerald Blocks to be less simplistic