Add a GetComponentType method to query a DXGI format. Also add a few missing DXGI formats related to vertex inputs. Change-Id: Ia39234a164000d11eef3806ba4f06b6426f1cbb7 Reviewed-on: https://chromium-review.googlesource.com/183584 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>