- New functions: add_cols, next_col_matching, next_col_random, next_row_matching, next_row_random, to_tidygraph_2, edg_tbl_2 (all imported from ryser-in-r project).
- New function: first_row_natural for generating 1 x n latin rectangles with symbols in natural order.
- Only the add_cols, add_rows and first_row_natural functions are now exported.