allow enabling EventLoop grid error reporting outside of GridDriver/PrunDriver
We are trying to make it possible to run user n-tuple production as part of central production. For that it is very helpful if the jobs do the proper error reporting. For GridDriver and PrunDriver that is done by default, and that is the recommended way to do it. However, some users have their own wrapper scripts and use DirectDriver on the grid. Those users can now enable the grid reporting functionality in their jobs as well.
Not sure if this reporting is complete, it is simply what's in EventLoop so far. If the experts want to see more reporting we can add it, in this MR or as separate MRs down the line.