release-23.1:Backport!7231

Merged Andrey Vertiprahov requested to merge cherry-pick-67c0f03f into release-23.1

Add Threshold Config param MetricRule

See merge request !7231 (merged)

(cherry picked from commit 67c0f03f)

458d024a Add ThresholdConfig to MetricRule. bd4ed15b Add PM Background Docs. 5758471f Add threshold CDAG node. 6afd5443 Add tests for threshold node. dd9be797 Fix alarm input. 40a3e7e2 Add Default Threshold alarm classes. 5a8b135e Fix typo. 12825205 Add default_labels to Interface Threshold AlarmClass. 202eea31 update metric_action_params and save labels fixed b7905afc fixed f99e5ac8 Remove ThresholdProfile Application. 00646441 Fix flake.

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