eval on 0 by division crush Kapacitor

Hi,

We found that in case you have an eval node in which, for any situation, en up with a division by 0 (x / 0) kapacitor suffers and crush.

Wouldn't be possible to manage that kind of situations without this behaviour? Giving maybe a 0, null, NA... would be "better" than the current state?

Start by reproducing the crash with a Kapacitor eval node that evaluates x / 0, then trace the eval-node handling for division by zero. The issue does not specify whether the result should be 0, null, or NA, so confirm the intended non-crashing behavior and add coverage demonstrating that the chosen result no longer crashes Kapacitor.

Written by the indexing model from the issue text.