FR: ability to filter out modpacks

[jlberman]

I'd like the ability to distinguish between total conversions (Solaris, Diaspora, BTA), mods which require retail (Blue Planet, Inferno), and asset packs/dumps which aren't complete campaigns.

[Shivansps]

I think something like that will be for 1.3, maybe not completely, but we can separate total conversions, and mods of that total conversion, from mods of FS2. This could be done by cheking the "parent" value of each mod that it is present in repo_minimal.json

But any other additional function would need to implement mod tags in nebula.