StateFlow and CoroutineScope as constructor Parameter

[sockeqwe]

For FlowReduxStateMachine we should use StateFlow instead of Flow so that the StateMachine can work independent from it's state subscribers (like UI can subscribe and unsubscribe according to UI's lifecycle.

Furthemore, the statemachine should keep alive independent from subscribers lifecycle. Therefore a CoroutineScope should be passed as constructor parameter. That CoroutineScope will then be used to keep the whole statemachine alive until that scope gets canceled. On canceling this statemachine firther calls of dispatch() or state.collect() must throw an IllegalStateException.