ProcFS-like instead of `g_kernquery()`

[MarcoCicognani]

Hi Max,
instead of implement a custom syscall for obtaining info from the kernel, the kernel could expose a ProcFS-like filesystem where the files herein contains the desired information

[MarcoCicognani]

I've already written the previous comment into the last merged pr, but I moved here too in order to keep in mind

[maxdev1]

I'm kind of indecisive on this, I somehow dislike misusing the file-system for it, but it is also a kind of clever solution. I think it should at least be all within some special kind of directory or something like that