Refactor reporting of resources used in command buffers

[Rua]

Changelog:

### Breaking changes
Changes to `GpuFuture`:
- The `check_buffer_access` and `check_image_access` methods now return nothing on success.

Changes to pipelines:
- The `descriptor_binding_requirements` method is moved to the `Pipeline` trait, and returns a reference to the hashmap directly.

This is mostly an internal refactoring, with a few user-visible changes on the side. Where previously, strings were used to indicate which resource within a command was being indicated in an error message, there is now the ResourceUseRef type which indicates it structurally.