Rename bit_cast to sk_bit_cast, and migrate to SkUtils.h.

This CL will allow sk_bit_cast to be used in more places (such as .fp
generated code) without #including the entire RasterPipeline header.

Change-Id: Iba3da944d33898d4fc8bc4df97231c55de2b1d0b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/305710
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2 files changed