✨ Utilize MQT-Core QuantumComputation Class

[aaronleesander]

What's the problem this feature will solve?

I want to be able to input other representations of quantum circuits other than qiskit circuits. The QuantumComputation class in MQT-Core is an abstraction of this which is also maintained and updated.

Describe the solution you'd like

I want to modify the code such that it depends on QuantumComputation rather than qiskit's QuantumCircuit.

[aaronleesander]

@denialhaag @burgholzer Moving the discussion from the pull request to this issue