JSON serialization not working for Infinity

[josdejong]

When serializing a number which is Infinity, the information is lost:

JSON.stringify(Infinity) // "null"

Expected behavior: the serialization should somehow serialize these special numeric values, so they can be revived correctly:

const aOriginal = Infinity
const stringified = JSON.stringify(aOriginal)
const aRevived = JSON.parse(stringified, math.json.reviver)// is null, should be Infinity
assert.strictEqual(aOriginal, aRevived) // is false, should be true

Ref: #27 (comment)

[josdejong]

Closing in favor of #1834, which I hadn't seen...