add command to create new projects

Les enregistrements retournés correspondent aux collections Jama pour lesquelles le flag 

"is_oai_record" vaut VRAI.

## Mise en place d'un projet et d'un utilisateur de test:

    (venv) code/jama: poetry run ./manage.py shell

    >>> from resources.models import APIKey, Project, ProjectAccess, Permission, Role

    >>> from django.contrib.auth.models import User

    >>> test_project, _ = Project.objects.get_or_create(label="test")

    >>> test_user, _ = User.objects.get_or_create(username="test")

    >>> admin_role, _ = Role.objects.get_or_create(label="admin", project=test_project)

    >>> for permission in Permission.objects.all():

    ...     admin_role.permissions.add(permission)

    ... 

    >>>     

    >>> ProjectAccess.objects.get_or_create(project=test_project, role=admin_role, user=test_user)

    (<ProjectAccess: test: test (admin)>, False)

    >>> key, _ = APIKey.objects.get_or_create(user=test_user, key="123456")

    >>> key.active = True

    >>> key.save()

## Création d'un nouveau projet:

    (venv) code/jama: poetry run python manage.py newjamaproject "mon projet"

    Projet "mon projet" créé avec le compte administrateur "admin_mon_projet" et la clef d'API "EOwy6laNTMBDUvH6pGuOvGdMEpYM2F9M"

## Étendre JAMA

from django.core.management.base import BaseCommand, CommandError

from resources.models import Project, Role, Permission, ProjectAccess, APIKey

from django.utils.text import slugify

from django.contrib.auth.models import User

import secrets

import string

class Command(BaseCommand):

    def add_arguments(self, parser):

        parser.add_argument("project_label", type=str)

    def handle(self, *args, **options):

        project_label = options.get("project_label")

        project = Project.objects.filter(label__iexact=project_label).first()

        if project:

            raise CommandError("Le projet existe déjà.")

        project_admin_username = slugify(f"admin_{project_label.replace(' ', '_')}")

        project = Project.objects.create(label=project_label)

        admin_user, _ = User.objects.get_or_create(username=project_admin_username)

        admin_role, _ = Role.objects.get_or_create(label="admin", project=project)

        for permission in Permission.objects.all():

            if permission.label != "collection.public_only":

                admin_role.permissions.add(permission)

        ProjectAccess.objects.get_or_create(

            project=project, role=admin_role, user=admin_user

        )

        key, _ = APIKey.objects.get_or_create(

            user=admin_user,

            key="".join(

                secrets.choice(string.ascii_letters + string.digits) for i in range(32)

            ),

        )

        key.active = True

        key.save()

        print(

            f'Projet "{project_label}" créé avec le compte administrateur "{admin_user.username}" et la clef d\'API "{key.key}"'

        )