ViaVersion

fbb92c0 Reduce mapping data file size by about 35% (30% uncompressed) The general idea behind the four storage types is the same, except ids are now

1. written as id deltas instead of absolute values
2. written with zigzag encoding (always positive)
3. written as varints

The previous commit made extra mapping data go down by 85% (both uncompressed and compressed).

Combined, this is about a megabyte less uncompressed and 125kb less compressed data bundled right now (not including ViaBackwards).

Reading has become ever so slightly faster due to the reduced file reads (despite now needing more complex decoding), but that's negligible anyway