This wraps a timeline vk_sync type and turns it into a binary one. This
is useful for, for instance, driver layered on D3D12.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13427>
Jason Ekstrand