Bump dependencies:
Remove views_ui from development default, allow this to be a regular module
Issue #3165042 by jurgenhaas: Deprecated function left in the code
Support for Drupal 8.8 and 9
Starting to support Drupal 9
Treat field_ui only as dev module if layout_builder is not enabled
Updated for Drupal 9 and some cleanup
Implement new command site:init
Cope with missing auto-loader
Make it compatible with Drush 9.3.0 and later
Add info.yml file and remove dependency again
Require lakedrops/installer-path-drupal-drush
This is now also working with Drush 9