Storage of job execution environment in output files [1/4]

[PetrilloAtWork]

This is part of the pull request SBNSoftware/sbncode#497.
All discussion goes there.

[kjplows]

Hi @PetrilloAtWork , there are conflicts now - could you please check the change in dep from lardataalg to lardataobj is OK? Thanks!
Pinging @absolution1 and @SFBayLaser here too for review.

[PetrilloAtWork]

The change is the other way, from lardataobj to lardataalg.
This is not a new requirement from this PR, but rather it's a dependency that was overlooked in the past (probably still my fault, but it's a me of several years ago so I repudiate him).

I can rebase to the latest develop, with the hope that it won't be needed again later (hint: it likely will).
[edit] now it is not a good time to rebase, since icaruscode and sbncode develop branches are out of sync. I'll do when they get on the same page again.