* Moved resetting ruleEngineStats to Consumer
* Moved counters to Map in TbCoreConsumerStats
* Added actuator and MetricsService
* Added metrics to core and rule_engine consumers
* Replaced summary with counters
* Removed most setters and getters from TbRuleEngine stats
* Added stats to Transport consumer
* Added JsInvoke actuator stats
* Removed MetricsService
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