Add simple simulator stub.

plugins/quantum_computing/src/QuantumSimulator.cpp

@@ -0,0 +1,25 @@
+#include "QuantumSimulator.h"
+
+#include "QuantumCircuit.h"
+
+const QuantumState& QuantumSimulator::getInputState() const
+{
+	return mInputState;
+}
+
+const QuantumState& QuantumSimulator::getOutputState() const
+{
+	return mOutputState;
+}
+
+void QuantumSimulator::setCircuit(QuantumCircuit* circuit)
+{
+	mCircuit = circuit;
+}
+
+void QuantumSimulator::run()
+{
+	mInputState = mCircuit->getInputState();
+
+	mOutputState = mInputState;
+}