Vanilla Refresh

Renewable Dragon Eggs, a new block animation, and a much more elegant dragon elytra/egg drop anim

• New Feature, Renewable Dragon Eggs: (Disabled by Default) The Enderdragon now drops an egg each time its killed, not just the first time its killed, allowing players to obtain their own dragon eggs and allow them to get the advancement for it too.
• Made the particle animation for the dragon dropping an elytra/egg even more elegant
• Dragon Eggs now have a custom block anim
• Block placement detection works a bit better now when placing the same block behind each other
• Changed the way the block anim for jukebox disc insertion is handled in the code