Function run_continuation 

pub fn run_continuation(
    buses: Vec<Bus>,
    lines: &[Line],
    transformers: &[Transformer],
    shunts: &[ShuntAdm],
    opts: ContinuationOptions,
) -> ContinuationCurve

Traces the P-V curve from the base case to the nose.

See the module docs for the shape of the answer.