games/NeoGeo-CD folder isn't created automatically

[bryanparadis]

Conversation came up in discord about the games/NeoGeo-CD folder not being there. They were following instructions on where to put the bios file. The folder wasn't made already. I am guessing because it's an extra folder and not the core's main game folder?

Looked for examples of other X-CD folders being created and only thing I found was here:

Distribution_MiSTer/.github/download_distribution.py

Line 193 in 49093bc

result.extend(["user-content-empty-folder", "games/TGFX16-CD"])

Is this the spot to add extra things or is there some metadata somewhere to define this? I'm new to the codebase.