v0.8.0 development branch

[jbaublitz]

Closes #318

[jbaublitz]

Fix clippy error here:

error: the `Err`-variant returned from this closure is very large
   --> src/rtnl.rs:595:35
    |
595 |               .try_fold(Vec::new(), |mut v, m| {
    |  ___________________________________^
596 | |                 v.push(m?);
597 | |                 Result::<_, RouterError<Rtm, Ifinfomsg>>::Ok(v)
598 | |             })
    | |_____________^
    |
   ::: src/err.rs:385:5
    |
385 |       BadSeqOrPid(Nlmsghdr<T, P>),
    |       --------------------------- the largest variant contains at least 128 bytes
    |
    = help: try reducing the size of `err::RouterError<consts::rtnl::Rtm, rtnl::Ifinfomsg>`, for example by boxing large elements or replacing it with `Box<err::RouterError<consts::rtnl::Rtm, rtnl::Ifinfomsg>>`
    = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.96.0/index.html#result_large_err
    = note: `-D clippy::result-large-err` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::result_large_err)]`

error: could not compile `neli` (lib test) due to 1 previous error