Properly support the menu state on Windows for benefits

[RaphaelIT7]

Now that I got the filesystem module working on Windows, the benefits of having HolyLib loaded are great.
With 72 legacy addons this is the comparison of the filesystem without and with holylib (0% cache misses though)

Without:

With:

Note

HolyLib already is partially supported in the menu state, though it needs far more testing and probably is a bit unstable