approximate sine for skvm

Change-Id: I90f12cb305ff8daf64b07e5f47bb3a158df95bee
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/282120
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
3 files changed