PR: StreamManager: add GetFeedInit

[Selene29]

I am using the core without ui.
You actually need to set them, otherwise the flowsheet init will error, when it checks the inital state.
Even though all streams have the needed data.

[vasylskorych]

Hi @Selene29, what exactly is the problem? Because there are only getters in the PR, so I can only guess how they are used.
Is it somehow related to 5d2b90d?

[Selene29]

No.
I added them because i got annoyed, on how to quickly access them.
Inletflow needs to have an "InputMaterial" feed stream set, otherwise
calling flowsheet->Initialize() has an error, because it also checks the init streams.

I personally set all streams by hand in code, therefore i dont care about the whole init stuff at all.
I completely missed them till i checked why it failed.

void CCentrifugeZoneManager::Simulate(double _timeBeg, double _timeEnd)
{
	auto p1 = GetPortStream(str::Port_Main_Top_Left_In);

	auto leftInlet = flowsheet->GetUnitByName("Main Top Left Inlet")->GetModel();
	//auto leftInlet = flowsheet->GetUnit("C55E0B290D8944C0832689B391867977")->GetModel();
	auto initStream = leftInlet->GetStreamsManager().GetFeedInit("InputMaterial");
	initStream->CopyFromStream(_timeBeg, _timeEnd, p1);

	auto workStream = leftInlet->GetStreamsManager().GetFeed("InputMaterial");
	workStream->CopyFromStream(_timeBeg, _timeEnd, p1);


	string errors1 = flowsheet->CheckPortsConnections();
	if (errors1 != "") {}
	bool check = flowsheet->DetermineCalculationSequence();
	if (!check) {}
	const std::string error = flowsheet->Initialize();
	if (!error.empty())
	{
		RaiseError(error);
		return;
	}

	flowsheet->GetParameters()->EndSimulationTime(_timeEnd);

	simulator = new CSimulator();
	simulator->SetFlowsheet(flowsheet);
	simulator->Simulate();

I simulate my flowsheet inside dyssols flowsheet, therefore i have a new flowsheet in a unit.