feat: hook to subscribe to events

[weboko]

Some projects require to subscribe to raw waku/libp2p events.

• add hook to subscribe to event by name;

[danisharora099]

I'm of the favour to expose these libp2p events through a Waku API as a wrapper over the libp2p events

[danisharora099]

I'd move this to js-waku and have it part of the API

[weboko]

I think there are multiple ways to approach it and we can decide which one will be first.

• (1) expose some of the libp2p API in @waku/react;
• (2) expose in js-waku by some abstraction if needed;
• (3) adapt hook to new abstraction or keep using waku.libp2p directly;

1 and 2 can come in different order