Elevators (now works in mp)

• nothing changed, its just compatible with 1.21.8 now

• bump datapack format version to 71 (was 61)

• upward elevators now use the gravity attribute on players, rather than give them the shulker effect. This fixes the long-standing issue where players could easily get the advancement for it by accident.

fixed uppercase letter in the namespace, datapack works now

The datapack has been entirely overhauled, using beet and bolt (a plugin for vscode and a toolkit for making datapacks more easily)

• signs, buttons, tripwires, pressure plates, and air will not interfere with the elevators if placed in their shafts
• instead of using a scoreboard, the elevators now use tags on players. this should be more reliable in multiplayer but is yet to be tested there. Interestingly, this is somewhat similar to how 1.0.0 worked.
  • you may want to manually remove the elevator scoreboard stuff from your world if you upgrade to this version
• despite a complete rewrite and simplification, the elevators are built in-game in the same way as before.