IGNITE-22962 Conflict resolver metrics per cache

Currently there is no metrics for conflict resolved entries. Thus, it's hard to analyze the overall picture for the process, especially if custom plugin for Conflict Resolver is used.

This ticket solves the issue by adding metrics counting for conflict resolver without depending on its origin. Metrics would be accessable for each cache, that is per cache monitoring.

If Conflct Resolver Manager plugin provided, the following metrics are going to be created and keep updated:

ConflictResolverAcceptedCount - Conflict resolver accepted entries count.
ConflictResolverRejectedCount - Conflict resolver rejected entries count.
ConflictResolverMergedCount - Conflict resolver merged entries count.

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The Contribution Checklist

[x] There is a single JIRA ticket related to the pull request.
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apache / ignite

IGNITE-22962 Conflict resolver metrics per cache #11469

The Contribution Checklist

Notes

Quality Gate passed