add resubscribe (in progress)

fix crash when no bus found in map

models/subscriptions.go

@@ -17,9 +17,8 @@ func NewSubscriptions() Subscriptions {
 }
 
 func (s *Subscriptions) AddSubscription(uid uuid.UUID, drv *json_dataModels.Driver) {
-	sub := Subscription{
+	(*s)[uid] = Subscription{
 		Bus:     drv.Bus,
 		Address: drv.Address,
 	}
-	(*s)[uid] = sub
 }