Add event checkin functionality, seperate power tests into a different form (#536)

* Split power related parts of event checklist into a seperate form

* Revamp H&S overview, remove individual lists.

They were not a good thing.

* Remove old 'vehicle/crew' stuff

* Very initial version of checkin form

* Further work on checkin, add role field etc

* Fix tests after form split

* Add ability to edit checkins, more validation

* Basic checkin/out logic complete

* Add homepage checkin for events happening now

* Minor improvement to homepage UI

* Checkin button turns into checkout button where applicable

* UI work

* Clicking check out does not redirect the user

* Register check in model with the admin site

* Add power record status chip, checklist status chip displays number of checklists

* Minor fixes

* Implement codedoctor suggestions

* pep8

* Add data migration for crew/vehicles

* Checkin only requires login (no perms) and block users from editing other checkins at Django level

RIGS/migrations/0047_auto_20230517_0944.py

@@ -0,0 +1,41 @@
+# Generated by Django 3.2.19 on 2023-05-17 08:44
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+def migrate_old_data(apps, schema_editor):
+    EventChecklist = apps.get_model('RIGS', 'EventChecklist')
+    EventCheckIn = apps.get_model('RIGS', 'EventCheckIn')
+    for ec in EventChecklist.objects.all():
+        for crew in ec.crew.all():
+            vehicle = ec.vehicles.get(driver=crew.crewmember) or None
+            EventCheckIn.objects.create(event=ec.event, person=crew.crewmember, role=crew.role, time=crew.start, end_time=crew.end, vehicle=vehicle.vehicle)
+
+
+def revert(apps, schema_editor):
+    apps.get_model('RIGS', 'EventCheckIn').objects.all().delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('RIGS', '0046_create_powertests'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='EventCheckIn',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('time', models.DateTimeField()),
+                ('role', models.CharField(blank=True, max_length=50)),
+                ('vehicle', models.CharField(blank=True, max_length=100)),
+                ('end_time', models.DateTimeField(blank=True, null=True)),
+                ('event', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='crew', to='RIGS.event')),
+                ('person', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='checkins', to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.RunPython(migrate_old_data, reverse_code=revert),
+    ]