`value_oid_as` is unsound

[Nugine]

Transmuting bytes to an arbitrary type can cause undefined behavior.

The safety requirements:

1. T must be Sized.
2. The length of bytes must be equal to size_of::<T>().
3. The alignment of bytes must be equal to align_of::<T>().
4. T must be valid for any binary representation.

https://github.com/johalun/sysctl-rs/blob/57c05e11519b26caed6ccc9260a3b84e185f80d1/src/unix/funcs.rs#L367-L369

[bigdogs]

+1