pub fn tuple_to_vector( tuple_str: &str, is_unary: bool, ) -> Result<Vec<Vec<i32>>, Xcsp3Error>
return the tuples by given string, eg (0,0,1)(0,1,0)(1,0,0)(1,1,1) -> [[0,0,1],[0,1,0],[1,0,0],[1,1,1]]