* initialises ConnectionManager and KeepAliveManager
ports from previous PR and makes necessary improvements and reductions
* address: comments
* map a ConnectionManager instance with a WakuNode
* abstract event listeners logic
* minor fix
* minor cleaning
* instantiate KeepAliveManager instead of extending
* fix build and enable all tests
* fix CI
* address review
* refine event handlers
- only removes the previously attached callback from
the event handlers while shutting down service
- removes the requirement of passing around
`keepAliveOptions` and `relay` inside of
`ConnectionManager`
* add verbosity to interface
* make `dialPeer()` more readable
* use set to push tags to avoid duplicates
* fix: merge build
* remove: logging function
* rename startService and stopService
* remove: future TODO
added that as part of future refactor
* use the new libp2p api
* initialise options in constructor//fix TS error
* remove stale export
* address principal review
* reset test timeout to master
