Kitconcept.contentcreator

------------------

- Use debug log level when generating image scales timo

- Make log messages more consistent timo

- Do not use colors for info messages timo

------------------

- Add classifiers to setup.py for Python 3.8, 3.9 and maturity. timo

- Set effective date if the content `review_state` is `published` sneridagh

------------------


- Explicitly include dependencies (supporting pip installations) ericof

- Use plone/setup-plonev1.0.0 in Github actions ericof

- Require plone.restapi 7.5.0 or superior (volto-slate blocks: resolveuid for links, transformer support) ericof

------------------

- New `do_not_edit_if_modified_after` option. Allows to not edit if the given date is lesser than the object modification date. sneridagh

------------------

Breaking:

- Use Slate as default text block sneridagh

------------------

Bugfix:

- Add refresh of the created content for updating the serialized blocks with the
resolveuid information sneridagh

Internal:

- Remove some unused imports [timo]
- Add flake8 check on CI [timo]