Write a function that converts an object into an array of keys and values.
objectToArray({
D: 1,
B: 2,
C: 3
}) ➞ [["D", 1], ["B", 2], ["C", 3]]
objectToArray({
likes: 2,
dislikes: 3,
followers: 10
}) ➞ [["likes", 2], ["dislikes", 3], ["followers", 10]]
N/A