[JS] comparison predicates don't work on 64-bit integers

The 64-bit integer vector `get` function returns a 2-element array, which doesn't compare propery in the comparison predicates. We should special case the comparisons for 64-bit integers and timestamps.

**Reporter**: [Brian Hulette](https://issues.apache.org/jira/browse/ARROW-2797) / @TheNeuralBit

_{**Note**: *This issue was originally created as [ARROW-2797](https://issues.apache.org/jira/browse/ARROW-2797). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*}