Allow wire_options per wire MPL drawers

[dwierichs]

Feature details

On the level of mid-scale algorithms, it might be nice to differentiate between different "types" of wires, for example by coloring them differently, or giving them distinct line styles. As an example, in this demo on preparing matrix product states, there are auxiliary bond qubits and physical qubits, and coloring them differently would be a neat thing to do.

Implementation

This should be as simply as allowing a nested dictionary for wire_options with wires as keys and inner wire_options dictionaries. If such a nested dictionary is passed, we only need to iterate over it, instead of reusing the same for all wires.

How important would you say this feature is?

1: Not important. Would be nice to have.

Additional information

This is really just a small cosmetic idea.