- Readded the packet handler system, now reduces more lags than before (*)
- Added PacketHandler annotation, used to handle new SpaciousLib's packet system (*)
- TimedSet and TimedList now implements Iterable
- NPC, Particle now supports 1.13
- Added BlockUtils
- Added new method: InventoryUtils#isNull(Material material)
- Anvil has been moved to the Inventory package. Though, the old package is still supported

(*): applied both Bungeecord and Spigot modules

Now, it's time to say that SpaciousLib has supported 1.13 completely!