[CORE-656] add test cases, metrics, and comments to sending module (#… #170

Job	Run time
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-socks / (socks) Build and Push	6m 35s
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-ender / (ender) Build and Push	6m 33s
(Public Testnet) Build and Push ECS Services / call-build-and-push-auxo-lambda / (auxo) Build and Push Lambda	5m 51s
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-comlink / (comlink) Build and Push	7m 8s
(Public Testnet) Build and Push ECS Services / call-build-and-push-bazooka-lambda / (bazooka) Build and Push Lambda	6m 18s
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-roundtable / (roundtable) Build and Push	5m 19s
(Public Testnet) Build and Push ECS Services / call-build-and-push-vulcan / (vulcan) Build and Push	6m 28s
	44m 12s

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