Get list of processes without opening handles

[dkrutsko]

Currently, when you use a function like Process::GetList, it opens a handle to every process before potentially adding it to the resulting list. This might compromise the security in some applications. To fix this, this function needs to be fixed (or another function created) that returns the same information but without opening a handle. This applies to mainly Windows and Mac. The same type of issue might also exist in other parts of the library, in which case it also needs to get fixed.