Add MetricCollector tests #953

Job	Run time
Transport: SQL	5m 11s
Transports: RabbitMQ	2m 37s
Build (ubuntu-latest)	2m 18s
Transports: ActiveMQ	1m 19s
Unit Tests	6m 30s
Build (windows-latest)	5m 20s
Transports: Azure Service Bus	0s
Storage: Azure Table	1m 52s
Storage: CosmosDB	3m 11s
Storage: Dapper	1m 6s
Storage: EntityFramework	4m 29s
Storage: Marten	1m 6s
Storage: MongoDB	1m 51s
Storage: NHibernate	55s
Storage: Redis	1m 0s
Transports: SQS (+S3)	2m 1s
Rider: EventHub	1m 9s
Scheduler: Hangfire	4m 21s
Rider: Kafka	2m 48s
Scheduler: Quartz	1m 53s
SignalR	1m 2s
Calculate Version	1s
Build and Publish NuGets	0s
	52m 0s

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