It's a plugin of for easy installing and managing ModPacks. you dont need to modify any data file, and enjoy Mods.
Currently, only support load files in folder (path/to/game/unmm/).
For example, if you want to cover 'infernus.dff' in models/gta3.img, you have to place the new 'infernus.dff' in the folder path/to/game/unmm/models/gta3.img/
C++11 Support(Visual Studio 2013 or higher)
Boost 1.54.0(http://www.boost.org/)Zeex's subhook(https://github.com/Zeex/subhook)