Add grace period plugin

[etj]

Install CKAN extension

New CKAN extension to be deployed:

git clone

• Repo https://github.com/geosolutions-it/ckanext-grace-period
• Branch main

Then

cd ckanext-grace-period
pip install -e .

ckan.ini changes

Add plugin grace_period

Set items:

• Collaborators:

  ckan.auth.allow_dataset_collaborators = true

  This is not specific to this extension, but to CKAN itself:

[randomorder]

@lpasquali can you please attach an estimate?

[lpasquali]

@randomorder done