It is honestly not as simple as I would like, but here are the files you would need:
../cstrike/addons/eventscripts/gungame51/scripts/custom/gg_scoreboard/gg_scoreboard.py (the script)
../cstrike/addons/eventscripts/gungame51/scripts/custom/gg_scoreboard/__init__.py (so Python can find the script)
../cstrike/addons/eventscripts/gungame51/scripts/custom/gg_scoreboard/gg_scoreboard_config.py (the cfglib script that generates the config)
../cstrike/addons/eventscripts/gungame51/scripts/custom/gg_scoreboard/gg_scoreboard.ini (the script's translation file - if needed)
I wish I had more time to explain, but unfortunately, I have to get to bed. What I can say is to look at the included addons (such as gg_elimination) to see how they are laid out. You can basically copy/paste the gg_elimination_config.py and replace the wording with the config you want to generate if you do so carefully. cfglib is the thing that controls configs as well as what controls the addons loading and unloading with GunGame5.1.
I do plan on eventually doing a tutorial, but haven't had the time. In the meantime, feel free to ask questions and we will be happy to answer to the best of our abilities.