Implement plot_barriers and initial_state for Rust circuit drawer (#1…

[Pravin-raj-03]

Fixes #16464

This PR introduces feature parity to the Rust text circuit drawer by implementing the plot_barriers and initial_state arguments.

Changes made:

• Updated CircuitDrawerConfig in crates/cext/src/circuit.rs to include plot_barriers and initial_state.
• Added a condition in build_layers inside crates/circuit/src/circuit_drawer.rs to skip parsing StandardInstruction::Barrier when plot_barriers is false, effectively hiding barriers from the VisualizationMatrix.
• Updated WireInputElement::get_name to properly prepend |0> to qubit wires and 0 to classical/creg wires when the initial_state flag is true.
• Refactored all existing Rust drawer unit tests to use plot_barriers=true and initial_state=false to ensure the original test expectations are preserved without breaking backwards compatibility.

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