[FPF] Refactor RulesetPublisher and RulesetService

Moves RulesetPublisher to core/ and makes RulesetService generic by adding a RulesetConfig with metadata about the ruleset it is being used for.

Change-Id: I7b9d920e24ec7905e51c650a9f51e207541c9b36
Bug: 40280666
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5382209


Reviewed-by: Alex Turner <alexmt@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Martin Verde <thesalsa@google.com>
Cr-Commit-Position: refs/heads/main@{#1278987}