[1.12.2] Allow more placeable items on special blocks such as glass

[LukeShortCloud]

In Minecraft 1.14, certain items could be placed on blocks that previously were not possible.

Items:

• Ladder
• Tripwire Hook
• Vines
• Coral Fan (new item added in Minecraft 1.13)
• Lever
• Button
• Torch
• Bell
• <COLOR> Bed (beds have been placeable on these blocks since Minecraft 1.13)
• Redstone
  • The behavior of redstone on glass is interesting in Java Edition. This could be a whole separate GitHub issue. For more information, refer to the Minecraft wiki page for Glass.

Redstone dust and components can be placed on glass, but cannot power glass. Glass can't cut vertical redstone. Vertical redstone can be placed on glass. In Java Edition, it transmits redstone signals up, not down. Otherwise, glass in redstone circuits is functionally the same as an upside-down slab.

Blocks:

• Glowstone
• Sea Lantern
• <COLOR> Stained Glass
• Glass
• Ice
• Packed Ice
• Blue Ice (new block added in Minecraft 1.13)

For the full details, refer to this Reddit post and the comments: https://www.reddit.com/r/Minecraft/comments/b67lvy/19w13a_allows_you_to_place_these_blocks_on_glass/