feat: pub sub (#1341)

* fix: pub sub

* fix: adaot config to commands (and queries)

* remove dependency on vv2 in v1

* fix: pub sub in new eventstore

* fix tests

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/eventstore/event.go

@@ -36,4 +36,6 @@ type EventReader interface {
 
 	Sequence() uint64
 	CreationDate() time.Time
+	//DataAsBytes returns the payload of the event. It represent the changed fields by the event
+	DataAsBytes() []byte
 }