D3D11: Detect driver version for blit workaround. Since the newer driver versions are required for WebGL 2 conformance, we need a solution that can detect a driver version to know if we should apply the workaround. Use a modified copy of Chrome's Windows GPU driver detection code. In the future we should extend this to a full module when we port the command buffer workarounds. BUG=angleproject:1452 Change-Id: I783d5726454671cc22585a2bf990c071d539aa9f Reviewed-on: https://chromium-review.googlesource.com/361962 Reviewed-by: Zhenyao Mo <zmo@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>