Update gfx dependency to hal-0.5

[kvark]

This project serves as a great testing ground for gfx releases, since it doesn't use any of the helper libraries and wrappers. We could always move it under gfx-rs org if you feel like that :) TODO:

• [x] publish gfx-rs and fix the dependencies here
• [x] test on Metal
• [x] test on Vulkan
• [x] test on DX12

[kvark]

Don't merge this yet (surprised to see no CI!), the dependency paths are temporary. (also, if the project is moved, would be nice to change the name to "gfx-ocean"). I could see this being transformed into a library for the simulation in compute, with an example or two for rendering.

[msiglreith]

Transfer complete 🌊 (: