Function rgsl::cblas::level3::dgemm

pub fn dgemm(
    order: Order,
    transA: Transpose,
    transB: Transpose,
    M: i32,
    N: i32,
    K: i32,
    alpha: f64,
    A: &[f64],
    lda: i32,
    B: &[f64],
    ldb: i32,
    beta: f64,
    C: &mut [f64],
    ldc: i32
)