Racket-Vulkan now synced to v1.2

racket-vulkan has been updated to reflect v1.2 of the Vulkan specification.

This release integrates 23 proven extensions into the core Vulkan API, bringing significant developer-requested access to new hardware functionality, improved application performance, and enhanced API usability. Multiple GPU vendors have certified conformant implementations, and significant open source tooling is expected during January 2020.

If you are interested in graphics programming in Racket, I would be interested in hearing your experience using the bindings.