[Mod portal] Mass installation of mod dependencies with selection

[SetazeR]

It may be tedious to install lot of optional dependencies one by one. As example my mod which only uses optional dependencies because there's no actual "core" dependencies that must be installed.
It would be nice if we could actually just select all needed mods during install without going after every optional dependency. I think it would also benefit other actual overhaul modpacks.

Thanks in advance.