Work on cart loading

src/cart.lua

@@ -0,0 +1,16 @@
+local Cart = {
+	code = function() return function() end, function() end end
+}
+
+function Cart:new(o)
+	o = o or {}
+	setmetatable(o,self)
+	self.__index = self
+	return o
+end
+
+function Cart:loadCart(s)
+	local ret = self:new()
+	if not love.filesystem.getInfo(s,"file") then return ret end
+	return ret
+end