core: create default user

# Conflicts:
#	README.md

passbook/core/migrations/0003_default_user.py

@@ -0,0 +1,28 @@
+# Generated by Django 3.0.6 on 2020-05-23 16:40
+
+from django.apps.registry import Apps
+from django.db import migrations
+from django.db.backends.base.schema import BaseDatabaseSchemaEditor
+
+
+def create_default_user(apps: Apps, schema_editor: BaseDatabaseSchemaEditor):
+    # User = apps.get_model("passbook_core", "User")
+    from passbook.core.models import User
+
+    pbadmin = User.objects.create(
+        username="pbadmin", email="root@localhost",  # password="pbadmin"
+    )
+    pbadmin.set_password("pbadmin")  # nosec
+    pbadmin.is_superuser = True
+    pbadmin.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("passbook_core", "0002_auto_20200523_1133"),
+    ]
+
+    operations = [
+        migrations.RunPython(create_default_user),
+    ]