Removed Max and Min world heights

(I don`t know which category suits this best so I have put it in Gameplay)

I am aware that removing the world height would cause EXTREME performance issues as taking the size of a chunk from 16x16x256(or 512 if you are reading this after caves and cliffs part 2) to 16x16x∞ however I have a solution to that problem.

Note: This would require a change in the way chunks are saved but I do not think it would be MASIVE. Simply change the chunk size from 16x16x256 or 512 to 16x16x16. "But Afterlifepro794" I hear you cry "That would more than half the 1.16 world height!!!" Don't fear!!! To fix it all you need to do is not just stack chunks along the x and z axis but the y axis too!!!

It is THAT simple!!!!!