Review request

[Toby Dickenson]

Hi all,

I am planning some changes to how openpnp handles job errors, and manages any retries of those errors.

Openpnp is doing a superb job for us now, but one outstanding issue is that jobs sometimes finish with 99% of placements complete. My goal is to increase the probability of it being 100% complete.

Any feedback would be appreciated:

https://github.com/openpnp/openpnp/issues/1891

Toby