move util into global scope

data/scripts/classes/feed.lua

@@ -1,5 +1,4 @@
 local Vector3 = require "types.vector3"
-local util    = require "util"
 
 local TEXTURE = "images/tongue.png"
 

data/scripts/classes/player.lua

@@ -1,5 +1,4 @@
 local Vector3 = require("types.vector3")
-local util = require("util")
 local Signal = require("types.signal")
 
 local Player = {

data/scripts/game.lua

@@ -1,8 +1,8 @@
+util = require "util"
 local player = require "classes.player"
-local util = require "util"
 local Vector3 = require "types.vector3"
-local Feed = require "classes.feed"
 
+local Feed = require "classes.feed"
 local feed = {}
 
 local function create_feed(position, direction)

data/scripts/types/signal.lua

@@ -3,8 +3,6 @@ local Signal = {
   _connections = {}
 }
 
-local util = require "util"
-
 Signal.__index = Signal
 
 ---Connects f to this signal. When the signal is emmitted, this function will be called.