Function glycos::graph::cryptograph::signature_data

fn signature_data(
    owner_cek: &Option<Vec<u8>>, 
    owner_recogniser: &Recogniser, 
    recogniser: &Recogniser, 
    acl: &VertexControlList, 
    acl_ephemeral: &PublicKey, 
    value: &Option<Vec<u8>>, 
    clock: u32
) -> BytesMut