message: Fix multi graphics pipeline creation
  When creating multiple graphics pipelines, some may fail and an error will be returned.
  Some pipelines might still be built correctly, so we want to return the error and the pipelines.
  The current implementation discards all pipelines
diff: @@ -425,7 +425,7 @@ pub trait DeviceV1_0 {
  pipeline_cache: vk::PipelineCache,
  create_infos: &[vk::GraphicsPipelineCreateInfo],
  allocation_callbacks: Option<&vk::AllocationCallbacks>)
  - -> VkResult<Vec<vk::Pipeline>> {
  + -> (Vec<vk::Pipeline>, VkResult<()>) {
  let mut pipelines = Vec::with_capacity(create_infos.len());
  let err_code = self.fp_v1_0()
  .create_graphics_pipelines(self.handle(),
  @@ -436,8 +436,8 @@ pub trait DeviceV1_0 {
  pipelines.as_mut_ptr());
  pipelines.set_len(create_infos.len());
  match err_code {
  - vk::Result::Success => Ok(pipelines),
  - _ => Err(err_code),
  + vk::Result::Success => (pipelines, Ok(())),
  + _ => (pipelines, Err(err_code)),
  }
  }
  