Add Win Clang Vulkan jobs.

No-Try: true
Change-Id: I0b9f07e9057892443934da399f60762005495bde
Reviewed-on: https://skia-review.googlesource.com/57081
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
2 files changed