[Feature Request] More skins for kids

[AtheistNMRiH]

https://steamcommunity.com/sharedfiles/filedetails/?id=3329938306
would be great to see this implemented to base game

[felis-catus]

Out of scope for vanilla. 1.15 includes sv_zombie_models <model,model2,model3> for each type to allow custom zombie pools for servers.

[felis-catus]

Reopening for post-1.15 scope since this would be nice to have for variation, we still need permission from the author and a revision that supports our new zombie model system, not the RNG hack.