parse profile following user-supplied A2B priority

This let skcms users indicate which A2B profile to prefer,
preserving skcms_Parse()'s hard-coded priorities.

Change-Id: Idd5e9c04e2c9eb5c8fc628365282c6884df42d24
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/388202
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
3 files changed