Add Mesh and Task shader support to GFX (#3190)

* Bump vulkan headers

Also just use vulkan-headers as a submodule

* Add drawMeshTasks to gfx graphics pipelines

* Add DispatchMesh overload with no payload, with GLSL intrinsic

* Require spirv 1.4 for mesh shaders

* Add vulkan mesh shader feature discovery

* Add mesh shader stage bits to vk-util

* Add mesh and task shader support to render-test

* Add mesh and task tests

* Preserve "payload" specifier in task shaders

* Add mesh shader pipeline support to gfx

* Add TODO

* Add numThreads attribute for amplification stage

* Add payload to task shader test

* Drop dependency on d3dx12

* Allow passing payloads from task to mesh shaders

* regenerate vs projects

* check DispatchMesh name correctly

* Add mesh shader tests to failing tests

* Detect wave-ops feature on vulkan

* Add fuse-product to expected failures

This fails because the global varaible `count` is not initialized

* Add required extension to WaveMaskMatch SPIR-V impl

* Remove meshShader member from pipeline desc

* Identify mesh shader support on d3d12

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/gfx/d3d12/d3d12-command-buffer.h b/tools/gfx/d3d12/d3d12-command-buffer.h
index 0b24764c1..1cc6e8850 100644
--- a/tools/gfx/d3d12/d3d12-command-buffer.h
+++ b/tools/gfx/d3d12/d3d12-command-buffer.h
@@ -37,6 +37,7 @@ public:
     ComPtr<ID3D12GraphicsCommandList> m_cmdList;
     ComPtr<ID3D12GraphicsCommandList1> m_cmdList1;
     ComPtr<ID3D12GraphicsCommandList4> m_cmdList4;
+    ComPtr<ID3D12GraphicsCommandList6> m_cmdList6;
 
     BreakableReference<TransientResourceHeapImpl> m_transientHeap;
     // Weak reference is fine here since `m_transientHeap` already holds strong reference to