Includes changes from jmadill to align with Vulkan backend design. Correctly setting layer count and depth when the texture type is 2Darray. Vulkan requires depth of 1 for 2Darray textures. Bug: angleproject:3189 Change-Id: I0d58c33fcd75b1d768ea0308ac6e54230d8cfcc5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1721169Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Cody Northrop <cnorthrop@google.com>
