[Visualisation] Multi-row partitioning of long-circuit illustrations

[lorenzocardarelli]

qadence.draw seems to illustrate circuits in one single row - see this QAOA tutorial.

circuit = QuantumCircuit(n_qubits, final_b)
from qadence.draw import html_string # markdown-exec: hide
print(html_string(circuit)) # markdown-exec: hide

When the circuit is deep, the height is shrunk to fit the image in the available frame. Partitioning the circuit in multiple rows with limited depth would improve the visibility.

[mlahariya]

@jpmoutinho please add this to #613