This should make it easier for us to reuse Go code properly.
util/fipstools is kind of a mess. runner has been using relative
imports, but Go seems to prefer this mechanism these days.
Update-Note: The import spelling in ssl/test/runner changes. Also we now
require Go 1.11. Or you could clone us into GOPATH, but no one does
that.
Change-Id: I8bf91e1e0345b3d0b3d17f5c642fe78b415b7dde
Reviewed-on: https://boringssl-review.googlesource.com/31884
Reviewed-by: Adam Langley <agl@google.com>