Function get_intra_edges 

pub fn get_intra_edges<'a, T: Pixel>(
    edge_buf: &'a mut Aligned<A64, [MaybeUninit<T>; 257]>,
    dst: &PlaneRegion<'_, T>,
    po: PlaneOffset,
    bit_depth: usize,
) -> IntraEdge<'a, T>