Function rgsl::cblas::level2::dgbmv

pub fn dgbmv(order: Order, transA: Transpose, M: i32, N: i32, KL: i32, KU: i32, alpha: f64, A: &[f64], lda: i32, X: &[f64], incx: i32, beta: f64, Y: &mut [f64], incy: i32)