message: Return `VkResult<bool>` from get_fence_status
  Makes it easier not to ignore actual errors.
diff: @@ -1670,10 +1670,11 @@ pub trait DeviceV1_0 {
  }
  #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.1-extensions/man/html/vkGetFenceStatus.html>"]
  - unsafe fn get_fence_status(&self, fence: vk::Fence) -> VkResult<()> {
  + unsafe fn get_fence_status(&self, fence: vk::Fence) -> VkResult<bool> {
  let err_code = self.fp_v1_0().get_fence_status(self.handle(), fence);
  match err_code {
  - vk::Result::SUCCESS => Ok(()),
  + vk::Result::SUCCESS => Ok(true),
  + vk::Result::NOT_READY => Ok(false),
  _ => Err(err_code),
  }
  }
  