Circular imports

[Matthias-Schaub]

In this pull request a couple of issues, which arose due to many changes in the code during the last pull requests starting with "Archive feature", are adressed.

• Use official gdal docker image from osgeo.
  • Set C.UTF-8 locale as default needed by the Click library.
• Avoid circular imports arising during import of project_types in definitions.py and import of definitions.py in project_types.
  • Correct wrong import location.
• Change arguement type from click.Path to string due to unresolved error.
• add archive and run commands to cli group of commands.