Resolve "Add rules and permissions"

Closes #73 (closed)

Closes #79 (closed)

aleksis/apps/alsijil/migrations/0002_alsijilglobalpermissions.py

+# Generated by Django 3.0.7 on 2020-06-27 14:04
+
+import django.contrib.postgres.fields.jsonb
+import django.contrib.sites.managers
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('alsijil', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='AlsijilGlobalPermissions',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('extended_data', django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False)),
+            ],
+            options={
+                'permissions': (('view_week', 'Can view week overview'), ('view_register_absence', 'Can view register absence page')),
+                'managed': False,
+            },
+            managers=[
+                ('objects', django.contrib.sites.managers.CurrentSiteManager()),
+            ],
+        ),
+    ]