Check that large integers are multiples of small multipleOf

[michaelmior]

See mafintosh/is-my-json-valid#192. The issue is that a multipleOf which is between 0 and 1 was not considering larger integers as valid. The tests attached check for this.

[gregsdennis]

These pass for me. Thanks for the addition!

[jdesrosiers]

This tests pass for me, but your $schema declarations don't match the versions being tested (copy/paste error I'm sure). I believe what we settled on is that 2019-09 later should have $schema and before that, it should be left out.

[michaelmior]

@jdesrosiers Whoops! That was indeed a rather careless copy-paste. I think it should be good now!

[michaelmior]

Thanks @jdesrosiers!