vector.new expose

[Klaranth]

Huhhila
expose vector.new to luac (may need to limit vector.metadata access?); would be most useful once pandorabox-io/pandorabox.io#711 is live on main server

Engine/Game migration Image: https://github.com/pandorabox-io/minetest_docker/releases/tag/5.5.0-r1 (based on 5.5.0 upstream tag) Notable changes zstd map format (should increase performance)

[OgelGames]

There's a bunch of stuff that could (and should) be available in the Luacontroller sandbox (see minetest-mods/mesecons#507 for some of them). I don't think there needs to be an issue here about it.

[OgelGames]

Closing in favor of #290, doesn't need a separate issue.