Always Loaded 1.2.0

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Rewritten most of the code, because the old one was terrible.
Extended version compatibility to 1.16
Renamed chunks.loaded and chunks.loaded.old to tickets.saved and tickets.saved.old
Those files are now stored in world/dimension/data instead of world/data/ - separate for every dimension.
Their format has also been changed.
"long_pos minecraft:dimension" -> "x y z"
Files with the old format will still be loaded, but upon saving will be converted to the new one.
Console logging improvements.