Add the beginnings of charts

This commit adds a lot of files, but most of them have no impact on any
other code. The thrust here is to start creating chart pages showing
which tracks and artists were most played for various time periods. Lots
still not working, but we're getting there.

vrobbler/apps/scrobbles/migrations/0010_chartrecord.py

@@ -0,0 +1,88 @@
+# Generated by Django 4.1.5 on 2023-01-30 17:01
+
+from django.db import migrations, models
+import django.db.models.deletion
+import django_extensions.db.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('music', '0009_alter_track_musicbrainz_id_and_more'),
+        ('videos', '0006_alter_video_year'),
+        ('scrobbles', '0009_scrobble_uuid'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ChartRecord',
+            fields=[
+                (
+                    'id',
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name='ID',
+                    ),
+                ),
+                (
+                    'created',
+                    django_extensions.db.fields.CreationDateTimeField(
+                        auto_now_add=True, verbose_name='created'
+                    ),
+                ),
+                (
+                    'modified',
+                    django_extensions.db.fields.ModificationDateTimeField(
+                        auto_now=True, verbose_name='modified'
+                    ),
+                ),
+                ('rank', models.IntegerField()),
+                ('year', models.IntegerField(default=2023)),
+                ('month', models.IntegerField(blank=True, null=True)),
+                ('week', models.IntegerField(blank=True, null=True)),
+                ('day', models.IntegerField(blank=True, null=True)),
+                (
+                    'artist',
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.DO_NOTHING,
+                        to='music.artist',
+                    ),
+                ),
+                (
+                    'series',
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.DO_NOTHING,
+                        to='videos.series',
+                    ),
+                ),
+                (
+                    'track',
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.DO_NOTHING,
+                        to='music.track',
+                    ),
+                ),
+                (
+                    'video',
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.DO_NOTHING,
+                        to='videos.video',
+                    ),
+                ),
+            ],
+            options={
+                'get_latest_by': 'modified',
+                'abstract': False,
+            },
+        ),
+    ]

vrobbler/apps/scrobbles/migrations/0011_chartrecord_user.py

@@ -0,0 +1,26 @@
+# Generated by Django 4.1.5 on 2023-01-30 17:44
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('scrobbles', '0010_chartrecord'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='chartrecord',
+            name='user',
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                to=settings.AUTH_USER_MODEL,
+            ),
+        ),
+    ]