[Vulkan] Introduce GPU Memory Layout qualifier (#106978)
Summary:
Introduce a GPU memory Layout qualifier in `vTensor`, which will allow more efficient memory layouts when storing Tensors on the GPU.
The plan is for shaders to use the memory layout qualifier to convert between logical tensor coordinates and physical texel positions.
Test Plan:
As-is, this diff should be a no-op. Run standard tests to make sure everything works as expected.
```
buck run --target-platforms ovr_config//platform/macos:arm64-fbsource //xplat/caffe2:pt_vulkan_api_test_binAppleMac\#macosx-arm64 -c pt.vulkan_full_precision=1
buck run --target-platforms ovr_config//platform/macos:arm64-fbsource //xplat/caffe2:pt_vulkan_quantized_api_test_binAppleMac\#macosx-arm64 -c pt.vulkan_full_precision=1
```
Reviewed By: kimishpatel
Differential Revision: D48129905
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106978
Approved by: https://github.com/liuk22
