[Feature request] Skip lines until certain text appears

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### Feature Proposal

It would be nice to have an option that skips lines until a certain text appears (in the simplest way at the beginning of the line, or more versatile with a regex). The fixed number for skip lines is too rigid for an application I have. The numeric `skipLines` option should still be there, after which the, let's call it, `skipUntil` option checks the lines for a text match. A match would be the first line of the import.

### Feature Use Case

I have a CSV file that comes from a banking application. That file contains a few lines with miscellaneous information at the beginning. The problem is that the number of lines is different depending on export settings. The actual CSV-data start at line 7, 8 or 9 with the column headers. The column headers are always the same, which I could match for to mark the start of the data.

Start by locating the parser's existing numeric skipLines option and its tests or usage examples. Add a skipUntil option that matches the beginning of a line or a regex after skipLines, and verify that the first matching line becomes the CSV header and import start.

Written by the indexing model from the issue text.