pw_log: Update proto - Update proto to use a single bytes field for optionally tokenized fields. - Start with a minimal set of fields, but document fields planned for future expansion. Change-Id: I5af8e65335001ffda03acc31e5077edbca9deff3 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/47780 Commit-Queue: Wyatt Hepler <hepler@google.com> Reviewed-by: Keir Mierle <keir@google.com>
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