Re: [libgpiod][PATCH 1/3] bindings: rust: fix soundness of line_info modeling

["Erik Schilling" <erik.schilling@linaro.org>]

> +/// Line info
> +///
> +/// This is the owned counterpart to [Info]. Due to a [Deref] implementation,
> +/// all functions of [Info] can also be called on this type.
> +#[derive(Debug)]
> +pub struct InfoOwned {
> +    info: *mut gpiod::gpiod_line_info,
> +}

While going through all the structs in order to add missing `Send`
implementations, it occured to me that it may be a bit confusing if
only this one type has the `Owned` suffix, while the others are also
"owned" but do not carry that suffix.

Not really sure how to resolve this... We could rename the non-owned
`Info` to something like `InfoRef` and turn `InfoOwned` back into
`Info`, but reading `&InfoRef` may be a bit weird?

Alternatively, we could rename all other structs to add the suffix...
Then, "Owned" would maybe sound confusing - given that no un-owned
variant exists.
Maybe "Box" would be a more suitable suffix in that case - borrowing
from the Box type name [1]?

Any opinions here?

[1] https://doc.rust-lang.org/std/boxed/struct.Box.html