FTT: Steam Enhanced for Arma 3

Flying tarta Tools:
Is an extension that add functions to the steamworkshop :

- Real weight of mods
- Download missions as PBO from the browser
- Download required mods as preset
- Create colections with presets as input

Also adds functions to presets! ( remember to save them after modify it)
- Merge presets
- Remove and add mods
- Weight the mods and presets to know the real size of your modpack!