Add new code snippets

WA snippets/Round.lua

@@ -0,0 +1,8 @@
+aura_env.round = function(var, n)
+	if (n) then
+		var = math.floor((var * 10 ^ n) + 0.5) / (10 ^ n)
+	else
+		var = math.floor(var + 0.5)
+	end
+	return var
+end