External data filtering and mapping wizard

[Nicklas Nordborg]

The use case is that we have a text file with some kind of personal data. The file is line-based and the first column is the personal number. TAB is used as separator between columns but we don't have to care about this after the personal number.

For each line in the file, we find the patient record with the given personal number. For that patient we find all specimen items. For each of the specimen items, we output a new line as:

<patient-id>{tab}<case-id>{tab}<specimen-id>{tab}<rest-of-data>

The *-id values are the external IDs. Lines that have no matching patient record are skipped in the output.

The generated data file is intended to be further processed in Relax where lines that are not in a specific data release are filtered out. See #1006.