Function get_drag_coefficient_with_transonic 

pub fn get_drag_coefficient_with_transonic(
    mach: f64,
    drag_model: &DragModel,
    apply_transonic_correction: bool,
    projectile_shape: Option<ProjectileShape>,
    caliber: Option<f64>,
    weight_grains: Option<f64>,
) -> f64

Get drag coefficient with optional transonic corrections