MergeFilterCSVFiles can merge and filter multiple CSV files.

NewReaderFile will create a csv.Reader and optionally strip off the byte order mark (BOM) if requested.

NewWriter returns a Writer with the separator params set.

ParseOneColListToGrid parses a set of lines with one value per row.

ReadFileOneColListToGrid parses a file with one value per row.

WriteCSVFiltered filters an existing CSV and writes the matching lines to a *csv.Writer.

WriteFile writes a `[][]string` to a file.

Writer is a struct for a CSV/TSV writer.