Put feature utility into it's own library To minimize system impact, have feature configuration utility live in it's own library. Bug=angleproject:2418 Change-Id: Ic8e3862965e515ded7e1a6078a7b9f8b92878818 Reviewed-on: https://chromium-review.googlesource.com/c/1269822 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@google.com> Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>