Currently the save format is just a testing thing, and should most likely be rewritten from 1.12

I am going to implement an indev save format to test tileentities, biomes, etc

Indev save format "finished" in ae5fd13

This has two options:

• Have the file format save as the current cube size as specified in the config. Reinterpret that if save cube size != config cube size
• Have the file format save as cube ambiguous. Each time a world is started, it will correctly interpret that as the cube size specified in the config.

The former is most likely better in many situations.

Closed by commits from 2660c5e to 96b45e5. Was later merged to 1.17 too