* Add 'SampledImage::sample_by_lod'
* Add a compiletest
* Format the compiletest, but manually because running cargo fmt doesn't seem to do anything 🤷
* Run rustfmt
* Convert Image<> parameters from enums to integers to make spirv-std build on stable
* Remove access_qualifier from Image type
It's kernel-mode-only, and we won't ever support kernel mode.
* Various fixes and cleanup
While working on other patches that ended up not being applicable, I've
gathered these changes unrelated to the irrelevant patch. So, submitting
them as a seperate change, since the bigger change isn't going in.
* Revert change superseded by #732
* Add sample_bias function
* Update line numbers
* Add gather function
* Update spirv-tools
CI was failing on "Capability SampledRect is not allowed by Vulkan 1.1
specification (or requires extension)", except locally it was fine, and
I have more up to date spirv-tools than CI, so try bumping the CI
version to see if it's just an out-of-date spirv-val
* Fix gather() in vulkan
* Convert compiler valication into marker traits
* Added read_subpass for SubpassData images, and necessary attrs for it.
* Fix CI; test bless + rustfmt
* Rename attachment_index => input_attachment_index.
* Rustfmt
* Fix clippy warning.
* Review: check for cap rather than adding cap, fix error messages.
* feat: Added instructions for depth reference and project coordinate image instructions
* docs: add alias annotation for methods in spirv-std/src/textures.rs
