Vulkan: Configure a simple RenderPass for drawing. BUG=angleproject:1319 Change-Id: I0668527a338a2f10ca74b43f2a8bd82534e732c0 Reviewed-on: https://chromium-review.googlesource.com/370805 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>