CSV import: add the ability to write rejected records to a specific file

[russorat]

As a user, I would like to use this capability to ingest a large number of CSV files, and some of them might have data quality issues.

I would like a way to provide a file location where the rejected records could be written so that they could be monitored and re-processed later.

something like influx write -f my.csv --errors-file errors.csv

This would constantly append any records that it could not process to that file.