Vulkan: Rename ImageLayout to ImageAccess This enum really describes how the image is accessed, including what VkImageLayout it should be in for that access. With VK_KHR_unified_image_layouts, it makes little sense to call this enum ImageLayout anymore, given how almost all of them will have VK_IMAGE_LAYOUT_GENERAL. Bug: angleproject:422982681 Change-Id: Id0ea107d339457e90b7a167292b75211eb42f803 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6918518 Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com>