Rethink some sub-systems of js-waku to be setup as libp2p services

[danisharora099]

With the upgrade of js-waku to support [email protected] and the introduction of services, we can probably setup some components as services.

Example: ConnectionManager: #1380 (comment)

Needs to be triaged.

[weboko]

I believe the next step would be to make a PoC and check if it works as intended.

Reference to services - https://github.com/libp2p/js-libp2p/blob/master/doc/migrations/v0.44-v0.45.md#services