RADV+Zink vs. RadeonSI OpenGL Performance On Mesa 23.2-devel

It's been a while since last looking at the Zink performance for this OpenGL implementation built atop the Vulkan APIs, but with all of the Zink progress by Valve's Mike Blumenkrantz and others, here is a fresh round of testing. This article is seeing how for Mesa Git the performance of Zink on the RADV Vulkan driver compares to that of the native RadeonSI driver while testing with both the Radeon RX 7600 and RX 7900 XTX graphics cards.