Add Fluka "simple example"

[grzanka]

Check "simple example" as described in the Fluka manual:
https://flukafiles.web.cern.ch/manual/chapters/beginners_guide/building_a_fluka_input/a_simple_example.html

Withing this issue identify which features in yaptide (ui,converter) are missing to fully implement this example.
Write them here as checkboxes.

[jagodek]

example.inp.txt - Example from fluka 4 package (.txt added to be able to upload to github)

• - XYP, XZP and YZP
• - EMFCUT
• - SCORE
• - USRBDX
• - USRTRACK

[grzanka]

I would start with USRTRACK , we already have a way to define kinetic energy spectrum, for example here:

Its differential scoring

Maybe that could be related to USRTRACK

[jagodek]

Ok. I may try that.