Function ndarray_linalg::util::all_close_l1

pub fn all_close_l1<A, Tol, S1, S2, D>(test: &ArrayBase<S1, D>,
                                       truth: &ArrayBase<S2, D>,
                                       rtol: Tol)
                                       -> Result<Tol, Tol> where A: LinalgScalar + NormedField<Output=Tol>,
        Tol: Float + Sum,
        S1: Data<Elem=A>,
        S2: Data<Elem=A>,
        D: Dimension

check two arrays are close in L1 norm