add clang_win tests to skcms tree

Change-Id: I5b6dd9b5f25dd6389f046a392b3e467779309105
Reviewed-on: https://skia-review.googlesource.com/117781
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
6 files changed