LArSoft

Fixed FHiCL files have been uploaded on branch feature/gp_Issue8103 (because I looked up the wrong issue number) of the following repositories:
- LArSoft: lardata, larevt, larsim, larreco, larana, larpandora, lareventdisplay, larexamples, larsoft
- experiments: argoneutcode, lariatsoft, lbnecode, uboonecode

A few FHiCL files in lbnecode and uboonecode have a construct like:

services.user: @local::my_services

that I don't know how to translate into the new paradigm yet.

One year later, the FHiCL @table:: construct well established, the work can be completed.
I did everything again from scratch, and wrote a replacement script RemoveUserFromServiceConfig.py (in larsoft/bin) that can address most of the substitutions and warns about possible other places to be changed by hand.

Changes have been pushed in LArSoft repositories as branch feature/gp_Issue8103: lardata, larevt, larsim, larreco, larpandora, larana, lareventdisplay and larsoft.

Experiment repositories have not been updated. Running RemoveUserFromServiceConfig.py -Uv in them show that after the automated substitutions, some replacements are left to be done manually.
The following table shows that dunetpc and lariatsoft will not need manual changes (although the script will suggest some to dunetpc):

The manual intervention consists in removing the opening and closing line of the user table:

services: {
  user: {    ### DELETE THIS LINE
    # ...
  }          ### DELETE THIS LINE
}

Approval tracking:

SBND is not in sync with LArSoft develop, but they have already started this migration.

Herbert Greenlee has communicated MicroBooNE's approval for this change.