Fix handling of states in ParticipantModelShell

[sebastian-peter]

The determination of the current state is not correct, currently:

simona/src/main/scala/edu/ie3/simona/model/participant2/ParticipantModelShell.scala

Lines 456 to 463 in 5f867a4

	val state = _state
	.zip(_operatingPoint)
	.flatMap { case (st, op) =>
	Option.when(st.tick < tick) {
	model.determineState(st, op, modelInput)
	}
	}
	.getOrElse(model.initialState(modelInput))

If the state for the current tick has already been calculated, it is not returned, but the initial state.

Check if this can be tested.