csv-meta-columns column ordinal

[MarkPflug]

With columns headers being optional in the 4180 spec, it might also be useful to specify/require the column ordinal in the meta-columns file. This would allow attaching headers to a csv via the column metadata.

For that matter, in the tables metadata would be useful to include a "HasHeaders" boolean column.

[secretGeek]

Absolutely true.

[secretGeek]

Adding to meta-columns

• ordinal - the order in which the columns have been written to the file. In cases where there is no header row, or where columns are re-ordered, this can be helpful.

Adding to meta-tables

• has-column-names - a true/false value indicating if the file has a header row containing column names.
• skip-rows - How many rows need to be skipped, before the data begins? (Rarely need to specify this, but when you need it, you need it!)

Keep the ideas coming @MarkPflug