Add a new-type pattern struct BoxedLibrary(Box<Library>)

[ClydeHobart]

This should implement Serialize and Deserialize<'de> explicitly.

impl<'de> Deserialize<'de>:

let raw_mu_library: *mut MaybeUninit<Library> =
    // Safe: allocated from the `Layout`, and `MaybeUninit<Library>` has the same align and size by definition
    unsafe { std::alloc::alloc(std::alloc::Layout::new::<Library>()) as *mut MaybeUninit<Library> };

if raw_mu_library.is_null() {
    std::alloc::handle_alloc_error();
}

let mut box_mu_library: Box<MaybeUninit<Library>> =
    // Safe: see allocation and null handling above
    unsafe { Box::from_raw(raw_mu_library) };

Library::initialize_maybe_uninit(&mut box_mu_library);

let mut box_library: Box<Library> =
    // Safe: see initialization above
    unsafe { std::mem::transmute(box_mu_library) };

// ...

Deserialize Vec fields normally, but array fields should be deserialzed one f32 or Quat at a time, writing to the member field as if it were a 1D array.

impl Serialize

Serialize Vec fields normally, but array fields should be Serialzed one f32 or Quat at a time, writing from the member field as if it were a 1D array.