Show DirectML feature level in chrome://gpu

This adds an entry to the Driver Information table within
chrome://gpu to inform users what DirectML feature level is
available.

Change-Id: Ie87987f0776aa51641b717f680663884a7538149
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5402805


Reviewed-by: Maggie Chen <magchen@chromium.org>
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Pooja Patel <patelpooja@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1280461}