Fishbone Trehalose

# Fishbone Trehalose Fishbone Trehalose is a library addressing restrictions and inconvenient. Examples include: - Player riding. - Inconsistent manipulation to `CustomData` between `Entity` and `ItemStack`. - Lacks of `remove(String)`, `remove(Identifier)` for `Map`s in composing objects but only `remove(Object)`. - Lacks of `getOrAdd`, `getOrCreate`, `getOrEmpty`. - Lacks of `deepCopy` for mutable self composing objects which can be composed very deep (eg. 512).