Special Eggs

- Made Echo Egg not require data pack to craft (Soul Egg does still need the data pack to obtain)

- Made Mob Eggs require specific Enchanted Resource Eggs to obtain, which are specified in the Advancement Menu

- Reorganized the Advancements to better fit with the above change

- Made Chickens drop normal Eggs when killed by a player with an Enchanted Egg or a Rainbow Egg in their off hand

- Made Turtles drop Turtle Eggs when killed by a player with a Rainbow Turtle Egg in their off hand

- Made Ender Dragons drop two Lesser Dragon Eggs when killed by a player with a Rainbow Dragon Egg