Takes two lists of equal length and combines them into a list of lists of each corresponding pair.
For example, if you zipped together
["a","b","c"] you'd get a new list:
[[1,"a"],[2,"b"],[3,"c"]]. The input lists can be lists of any type.
list1: The first list
list2: The second list
list: The combination of list1 and list2 as described above.