More Intel ANV Vulkan Code Hits Mesa Git, Other Patches Pending

Just under 50 Intel Vulkan driver related commits hit Mesa master a short time ago plus other "ANV" Vulkan driver improvements are still pending.

Among the changes include a lot of work on the anv/pipeline code, enabling vertex shader statistics for Gen8 hardware, unifying a lot of code, a number of fixes, a rework to how render target surfaces are allocated, support for vertex shaders in the blorp code, and other changes.

Fetch the latest Mesa Git code for all of these newest Intel Vulkan driver improvements. Meanwhile, published on the Mesa mailing list for review was input attachments support for the Intel Vulkan driver. For those unfamiliar with Vulkan input attachments, they are described by the documentation as, "nn input attachment is an image view that can be used for pixel local load operations from within fragment shaders bound to pipelines. Loads from input attachments are unfiltered. All image formats that are supported for color attachments or depth/stencil attachments for a given image tiling mode are also supported for input attachments."