feat: data import script

Feature

Summary

This MR provides a script for importing source data form textgrid. This is useful for checking the application against the source data set. It also allows to check import timings locally.

Compliance to “Definition of Done”

• Unit tests passed
• Code reviewed
• Product Owner accepts the User Story

Documentation

• I updated the README (if applicable)
• I provided my functions with appropriate documentation
• I updated existing documentation

Tests

Are we able to test this new feature?

• Yes, everything can be done via unit tests.
• Yes, you can test by following these steps: …
• No, it is not possible.

Changelog

• I added a statement to the CHANGELOG.

Version number

• I bumped the version number in build.properties.

Closes

Closes

Logs and Screenshots

/cc Mathias Göbel, Frank Schneider, Michelle Weidling