Further scaffolding

core/data/router.go

@@ -0,0 +1,16 @@
+package data
+
+import "github.com/google/uuid"
+
+type Router struct {
+	busses map[string]Bus
+}
+
+func NewRouter() *Router {
+	return &Router{
+		busses: make(map[string]Bus),
+	}
+}
+
+func (r *Router) Emit(namespace string, id uuid.UUID, envelope Envelope) error         { return nil }
+func (r *Router) EmitBatch(namespace string, id uuid.UUID, enveloeps []Envelope) error { return nil }