Add aggregated metrics information to metrics YAML definitions

Background

Because Redis metric aggregation feature was created before merics yml definitions and this caused legacy duplication and distribution of information. Event can be aggregated into metric with 3 of following ways:

1. Total metrics - already deprecated feature, yet still used by some older metrics
2. Aggregated metrics - via yaml config files at https://gitlab.com/gitlab-org/gitlab/-/tree/master/config/metrics/aggregates and https://gitlab.com/gitlab-org/gitlab/-/tree/master/ee/config/metrics/aggregates
3. Metric yaml deifnition - via option.events

This makes create confusing experience for developers, and makes it harder to utilize aggregation information for any downstream systems as discussed at #370462 (comment 1067324388)

Goal

Add support to mirror all information from aggregated metrics configuration into metrics YAML definition

This issue was extracted from #370963 (closed) that covers broader effort to unify redis metrics definitions