Request for math.round

[Montandalar]

math.round is available to Minetest/Luanti, as are the standard library functions math.floor and math.ceil. Please make math.round available as well, so it doesn't have to be home-brewed.

Made as a follow-up to a question by NicoKaiserHello on the forums.

[Darin755]

You can add it here

https://github.com/minetest-mods/mesecons/blob/31b56063a044677f96fd00275a7eccabd4a63f43/mesecons_luacontroller/init.lua#L502