Queue operations refactoring

[Rua]

Changelog:

- **Breaking** Changes to queue operations:
  - `PresentInfo` as been renamed to `SwapchainPresentInfo` and has differently named members and constructor.
  - `acquire_next_image` returns an `u32` index to match Vulkan.
  - `SubmitAnyBuilder` and its wrapped types no longer have a lifetime parameter, as they own their data instead. Various methods of these types now take their arguments by value.
- **Breaking** Changes to `Swapchain`:
  - The `W` parameter must now implement `Send + Sync`.

This is a first step in reorganising the futures so that the Queue can eventually own and keep track of everything that is submitted to it, similar to what CommandBufferBuilder already does. The hope is that this will eventually make it possible to implement a lot of currently missing features and fix some of the issues currently plaguing futures. In this PR, the most important underlying change is the addition of three new unchecked methods (currently pub(crate) only) to Queue, and making the existing future code use those methods internally, including the new info structs I created for them.