Found an issue with running on Linux that I fixed

[MalekiRe]

When running on linux removing static from the openxr crate was necesscary, along with that, adding ash::extensions::khr::Swapchain::name() to the DeviceCreateInfo and removing it from extensions was necessary to get it running. I will be making a PR shortly but I assume this code does function on some other platform, likely windows, so is this just a platform difference and I should modify things with #cfg(unix) or is this something I should just generally add?