Oak Sapling

Added compatibility with 25w05a snapshot.

Changed textures:

• Warm Cow changed to Cow Horse texture from 2.0 April Fools verison.
• Cold Cow changed to Wooly Cow from Minecraft: Earth.
• Pig texture changed to develop gray texture.
• Cherry Leaves changed to the first Pig texture bacuse it used Pig model as placeholder during development.
• Bush and Fireflu Bush textures changed to Shrub textures.
• Firefly particlke texture changed to Firefly from MinecraftL Story Mode.
• Pig texture changed to remove the snout that wasn't in it's first model.
• Changed Cow and Mooshroom textures to support new models.