Simple DUNE ND-like event generation

Based on documentation from the SLAC group:

• ND simulation how-to - if you follow this make sure to execute edep-sim without passing the -u argument - this causes errors.
• ParticleBomb documentation

We use this larnd-sim version.

Shfiter (docker) container deeplearnphysics/dune-nd-sim:ub20.04-cpubase-edep2supera or deeplearnphysics/larcv2:ub20.04-cuda11.3-cudnn8-pytorch1.10.0-larndsim