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/0048_auto_20230518_1256.py

@@ -0,0 +1,156 @@
+# Generated by Django 3.2.19 on 2023-05-18 11:56
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('RIGS', '0047_auto_20230517_0944'),
+    ]
+
+    operations = [
+                migrations.RemoveField(
+            model_name='eventchecklistvehicle',
+            name='checklist',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklistvehicle',
+            name='driver',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='all_rcds_tested',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='earthing',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='fd_earth_fault',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='fd_phase_rotation',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='fd_pssc',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='fd_voltage_l1',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='fd_voltage_l2',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='fd_voltage_l3',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='labelling',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='pat',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='power_mic',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='public_sockets_tested',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='rcds',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='source_rcd',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='supply_test',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w1_description',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w1_earth_fault',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w1_polarity',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w1_voltage',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w2_description',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w2_earth_fault',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w2_polarity',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w2_voltage',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w3_description',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w3_earth_fault',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w3_polarity',
+        ),
+        migrations.RemoveField(
+            model_name='eventchecklist',
+            name='w3_voltage',
+        ),
+        migrations.AddField(
+            model_name='powertestrecord',
+            name='power_mic',
+            field=models.ForeignKey(blank=True, help_text='Who is the Power MIC?', null=True, on_delete=django.db.models.deletion.CASCADE, related_name='checklists', to=settings.AUTH_USER_MODEL, verbose_name='Power MIC'),
+        ),
+        migrations.AlterField(
+            model_name='eventchecklist',
+            name='reviewed_at',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name='powertestrecord',
+            name='reviewed_at',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name='riskassessment',
+            name='reviewed_at',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.DeleteModel(
+            name='EventChecklistCrew',
+        ),
+        migrations.DeleteModel(
+            name='EventChecklistVehicle',
+        ),
+    ]