misc preloaded into world packets

I made the server send a bunch of packets for extra info about the world before loading in. I also make a region file handler to get chunk & subchunk data in nbt format.

Issues

Currently idk how to write the level_chunk_with_light packet and it always says 14KB or 22KB of extra data, i need to look into it

Also for some reason the player’s game crashes when they move (but not look around) due to ticking entity or something. I will also need to investigate this

I’mma take a break from this as school has started recently, ive been spending so much time on this, and the chunk roadblock makes me very demotivated