* Fix receiver exit criteria, not let it wait forever in some cases, added a timely check from the last arrived message
* Extend dial and service usage failure metrics with agent string to reveal service nodes origins
* Adjusted infra testing content topic to be unique in the system
* Extend error logs with peer's agent string, fix exit criteria
* Add informative log for not waiting for more messages
* Add unknown as default for empty agent identifier
* better explain exit logic of receiver
* Address review comment - checking for last message arrival return Optional Moment instead of result - better explains what is happening.
* Adding lpt-runner script and assemble into liteprotocoltester image - to ease infra deployment
* Add supervisor that can run lpt continously in infra environment, infra.env defines defaults for run, in case image tag of lpt docker image is deploy it will build a specific image for infra deployment.
* Added message latency metrics
* DELAY_MESSAGES to MESSAGE_INTERVAL renaming
* Adjust name of START_PUBLISHING_AFTER
* Extend lpt readme with how to use make to build dockerized image and notice about infra deployment
* As fixed in discussion, we will control infra testing by built in predefined test setup
* Prevent peer switch in case using fixed service peers
