Added temporary utility bits module for checking bit flags

luascripts/util/bits.lua

@@ -0,0 +1,28 @@
+
+-- WolfAdmin module for Wolfenstein: Enemy Territory servers.
+-- Copyright (C) 2015-2016 Timo 'Timothy' Smit
+
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- at your option any later version.
+
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+local bits = {}
+
+function bits.hasbit(x, b)
+    if b == 0 then
+        return x == b
+    end
+
+    return x % (b + b) >= b
+end
+
+return bits