cvetriager: web scraper

This feature gathers data about the fixes relevant to the given CVE
number. It scrapes information from https://cve.mitre.org/.

BUG=chromium:1093363
TEST=python setup.py test

Change-Id: I64c1f2ad53fd673ad871647b0260fe35cdee47d6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2283528
Reviewed-by: Zubin Mithra <zsm@chromium.org>
Commit-Queue: Wanda Mora <morawand@chromium.org>
Tested-by: Wanda Mora <morawand@chromium.org>
3 files changed