Add getMaxExpandedDepth on Table API to get maximum possible expended depth

[PaulCordo]

I'd like to know the maximum depth of my rows without having to open them all to be able to use table.getExpandedDepth()

[PaulCordo]

Been doing it like this after processing my data:

function getMaxDepth(rows: ICompareRow[]): number {
  return rows.reduce(
    (count, row) =>
      Math.max(count, row.subRows?.length ? getMaxDepth(row.subRows) + 1 : 0),
    0
  );
}