Revert "Revert "Move localmatrix routines to shaderbase, no need to be public.""

Need to guard this for google3

This reverts commit f88a0e1c9138d54aa302dddc080d21cfd5325650.

Change-Id: Ia169610898c6276ae5af8a869ecc9672f6f4f285
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/206264
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
8 files changed