Vulkan: allow selecting render device by PCI device/vendor IDs The EGL_ANGLE_platform_angle_device_id extension is deliberately vague about the meaning of "device ID high" and "device ID low", stating it's platform-specific. We can use these for representing the PCI device/vendor IDs that can be discovered via various (OS-specific) external means. Bug: angleproject:7460 Change-Id: Iff462687749e815fa074ef8ff392b6730ef46fa8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3720733 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>