Fix text drawer AnnotatedOperations

[enavarro51]

Summary

Fixes #11465

Details and comments

This PR fixes an issue in the text drawer where multi-qubit AnnotatedOperations were not displaying all the qubits.

Now this,

from qiskit.circuit import QuantumCircuit
from qiskit.circuit.annotated_operation import AnnotatedOperation, InverseModifier, ControlModifier
from qiskit.circuit.library import CXGate

gate = AnnotatedOperation(CXGate(), ControlModifier(1))
circuit = QuantumCircuit(gate.num_qubits)
circuit.append(gate, range(gate.num_qubits))
print(circuit)

displays as

            
q_0: ───■───
     ┌──┴──┐
q_1: ┤0    ├
     │  Cx │
q_2: ┤1    ├
     └─────┘

[qiskit-bot]

One or more of the the following people are requested to review this:

• @enavarro51
• @Qiskit/terra-core

[coveralls]

Pull Request Test Coverage Report for Build 7358911878

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.04%) to 87.513%

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Totals
Change from base Build 7317452088:	-0.04%
Covered Lines:	59227
Relevant Lines:	67678

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💛 - Coveralls

[alexanderivrii]

@enavarro51, many thanks for the lightning fast fix. Just a small question: could there be a similar problem in matplotlib-based visualization?

[enavarro51]

The problem here was just that the text drawer did not handle the multi-qubit case. The mpl drawer already does.

[alexanderivrii]

LGTM, thanks!