✨(plugin) add CommuneCreation plugin

Extend plugin mechanism to be able to grant domain admin in Dimail

src/backend/people/settings.py

@@ -657,8 +657,6 @@ class Development(Base):
 
     OIDC_ORGANIZATION_REGISTRATION_ID_FIELD = "siret"
 
-    ORGANIZATION_PLUGINS = ["plugins.organizations.NameFromSiretOrganizationPlugin"]
-
     def __init__(self):
         """In dev, force installs needed for Swagger API."""
         # pylint: disable=invalid-name
@@ -706,8 +704,6 @@ class Test(Base):
 
     OIDC_ORGANIZATION_REGISTRATION_ID_FIELD = "siret"
 
-    ORGANIZATION_PLUGINS = ["plugins.organizations.NameFromSiretOrganizationPlugin"]
-
     ORGANIZATION_REGISTRATION_ID_VALIDATORS = [
         {
             "NAME": "django.core.validators.RegexValidator",