### Description of the change This is a preparation for #724 (bash script testing) which would be too complex to review if done there. I haven't changed the script contents. ### Benefits Better IDE support, possibility for shell checks, tests. ### Possible drawbacks - ### Additional information I only extracted files that are native bash scripts. There are others, being a mix of Helm templating and shell scripts. Those scripts must be cleared first before extracting them as well. Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/751 Co-authored-by: justusbunsi <sk.bunsenbrenner@gmail.com> Co-committed-by: justusbunsi <sk.bunsenbrenner@gmail.com>