[FEATURE] Add option to `qasm3_to_qir` to omit barriers in conversion

[ryanhill1]

Feature Description

The qBraid QIR simulator does not currently support barriers, and qiskit.QuantumCircuit.measure_all() implicitly adds barriers. This means that in the qBraid-SDK, the following code currently fails:

from qbraid import QbraidProvider
from qiskit import QuantumCircuit

circuit = QuantumCircuit(2)

circuit.h(0)
circuit.cx(0, 1)
circuit.measure_all()

provider = QbraidProvider()
device = provider.get_device("qbraid_qir_simulator")
job = device.run(circuit, shots=100)

It would be nice if we could somehow remove barriers from the pyqir.Module after conversion, or add an optional argument to qasm3_to_qir that allows one to exclude barriers from the output of the conversion.

Implementation (Optional)

No response