[Feature] Support federated connector

[qqeasonchen]

Search before asking

• I had searched in the issues and found no similar issues.

Feature Request

Currently, A event routes to eventstore when publish to EventMesh, and consumes by another EventMesh from eventstore, but if a event can route from one eventmesh to another eventmesh, eventstore will not must be shared between eventmesh of publisher and subscriber at the same time.
That means a event can route from one eventmesh to another one dynamically, and they are full mesh among eventmeshes.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[mroccyen]

please assign to me, i will try my best to finish it.