Function scale_paths_uniform 

pub fn scale_paths_uniform<T1, T2>(
    paths: &Paths<T2>,
    scale: f64,
    error_code: &mut i32,
) -> Paths<T1>
where
    T1: Num + Copy + PartialOrd + FromF64,
    T2: Copy + ToF64,

Scale multiple paths with uniform scale Direct port from clipper.core.h line 584