Add juice cartons

[Danger Noodle]

We already have lunchboxes so why not pair them up with a nice carton of juice or cyanide. The food vendor should come with about 10 stocked up in it and they would spawn with random colours and a couple special variants like an orange juice carton, they would hold 50-80u and could be refilled but would come empty when bought from the foodtek vendor. I just want to sip on some juice while eating my donuts as sec.